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Editing: /home1/pickupmy/public_html/sayerssister.com.au/wp-includes/SimplePie/src/SimplePie.php

<?php

// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-License-Identifier: BSD-3-Clause

declare(strict_types=1);

namespace SimplePie;

use InvalidArgumentException;
use Psr\Http\Client\ClientInterface;
use Psr\Http\Message\RequestFactoryInterface;
use Psr\Http\Message\UriFactoryInterface;
use Psr\SimpleCache\CacheInterface;
use SimplePie\Cache\Base;
use SimplePie\Cache\BaseDataCache;
use SimplePie\Cache\CallableNameFilter;
use SimplePie\Cache\DataCache;
use SimplePie\Cache\NameFilter;
use SimplePie\Cache\Psr16;
use SimplePie\Content\Type\Sniffer;
use SimplePie\Exception as SimplePieException;
use SimplePie\HTTP\Client;
use SimplePie\HTTP\ClientException;
use SimplePie\HTTP\FileClient;
use SimplePie\HTTP\Psr18Client;
use SimplePie\HTTP\Response;

/**
 * SimplePie
 */
class SimplePie
{
    /**
     * SimplePie Name
     */
    public const NAME = 'SimplePie';

/**
     * SimplePie Version
     */
    public const VERSION = '1.9.0';

/**
     * SimplePie Website URL
     */
    public const URL = 'http://simplepie.org';

/**
     * SimplePie Linkback
     */
    public const LINKBACK = '<a href="' . self::URL . '" title="' . self::NAME . ' ' . self::VERSION . '">' . self::NAME . '</a>';

/**
     * No Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_NONE = 0;

/**
     * Feed Link Element Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_AUTODISCOVERY = 1;

/**
     * Local Feed Extension Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_LOCAL_EXTENSION = 2;

/**
     * Local Feed Body Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_LOCAL_BODY = 4;

/**
     * Remote Feed Extension Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_REMOTE_EXTENSION = 8;

/**
     * Remote Feed Body Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_REMOTE_BODY = 16;

/**
     * All Feed Autodiscovery
     * @see SimplePie::set_autodiscovery_level()
     */
    public const LOCATOR_ALL = 31;

/**
     * No known feed type
     */
    public const TYPE_NONE = 0;

/**
     * RSS 0.90
     */
    public const TYPE_RSS_090 = 1;

/**
     * RSS 0.91 (Netscape)
     */
    public const TYPE_RSS_091_NETSCAPE = 2;

/**
     * RSS 0.91 (Userland)
     */
    public const TYPE_RSS_091_USERLAND = 4;

/**
     * RSS 0.91 (both Netscape and Userland)
     */
    public const TYPE_RSS_091 = 6;

/**
     * RSS 0.92
     */
    public const TYPE_RSS_092 = 8;

/**
     * RSS 0.93
     */
    public const TYPE_RSS_093 = 16;

/**
     * RSS 0.94
     */
    public const TYPE_RSS_094 = 32;

/**
     * RSS 1.0
     */
    public const TYPE_RSS_10 = 64;

/**
     * RSS 2.0
     */
    public const TYPE_RSS_20 = 128;

/**
     * RDF-based RSS
     */
    public const TYPE_RSS_RDF = 65;

/**
     * Non-RDF-based RSS (truly intended as syndication format)
     */
    public const TYPE_RSS_SYNDICATION = 190;

/**
     * All RSS
     */
    public const TYPE_RSS_ALL = 255;

/**
     * Atom 0.3
     */
    public const TYPE_ATOM_03 = 256;

/**
     * Atom 1.0
     */
    public const TYPE_ATOM_10 = 512;

/**
     * All Atom
     */
    public const TYPE_ATOM_ALL = 768;

/**
     * All feed types
     */
    public const TYPE_ALL = 1023;

/**
     * No construct
     */
    public const CONSTRUCT_NONE = 0;

/**
     * Text construct
     */
    public const CONSTRUCT_TEXT = 1;

/**
     * HTML construct
     */
    public const CONSTRUCT_HTML = 2;

/**
     * XHTML construct
     */
    public const CONSTRUCT_XHTML = 4;

/**
     * base64-encoded construct
     */
    public const CONSTRUCT_BASE64 = 8;

/**
     * IRI construct
     */
    public const CONSTRUCT_IRI = 16;

/**
     * A construct that might be HTML
     */
    public const CONSTRUCT_MAYBE_HTML = 32;

/**
     * All constructs
     */
    public const CONSTRUCT_ALL = 63;

/**
     * Don't change case
     */
    public const SAME_CASE = 1;

/**
     * Change to lowercase
     */
    public const LOWERCASE = 2;

/**
     * Change to uppercase
     */
    public const UPPERCASE = 4;

/**
     * PCRE for HTML attributes
     */
    public const PCRE_HTML_ATTRIBUTE = '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*';

/**
     * PCRE for XML attributes
     */
    public const PCRE_XML_ATTRIBUTE = '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*';

/**
     * XML Namespace
     */
    public const NAMESPACE_XML = 'http://www.w3.org/XML/1998/namespace';

/**
     * Atom 1.0 Namespace
     */
    public const NAMESPACE_ATOM_10 = 'http://www.w3.org/2005/Atom';

/**
     * Atom 0.3 Namespace
     */
    public const NAMESPACE_ATOM_03 = 'http://purl.org/atom/ns#';

/**
     * RDF Namespace
     */
    public const NAMESPACE_RDF = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#';

/**
     * RSS 0.90 Namespace
     */
    public const NAMESPACE_RSS_090 = 'http://my.netscape.com/rdf/simple/0.9/';

/**
     * RSS 1.0 Namespace
     */
    public const NAMESPACE_RSS_10 = 'http://purl.org/rss/1.0/';

/**
     * RSS 1.0 Content Module Namespace
     */
    public const NAMESPACE_RSS_10_MODULES_CONTENT = 'http://purl.org/rss/1.0/modules/content/';

/**
     * RSS 2.0 Namespace
     * (Stupid, I know, but I'm certain it will confuse people less with support.)
     */
    public const NAMESPACE_RSS_20 = '';

/**
     * DC 1.0 Namespace
     */
    public const NAMESPACE_DC_10 = 'http://purl.org/dc/elements/1.0/';

/**
     * DC 1.1 Namespace
     */
    public const NAMESPACE_DC_11 = 'http://purl.org/dc/elements/1.1/';

/**
     * W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace
     */
    public const NAMESPACE_W3C_BASIC_GEO = 'http://www.w3.org/2003/01/geo/wgs84_pos#';

/**
     * GeoRSS Namespace
     */
    public const NAMESPACE_GEORSS = 'http://www.georss.org/georss';

/**
     * Media RSS Namespace
     */
    public const NAMESPACE_MEDIARSS = 'http://search.yahoo.com/mrss/';

/**
     * Wrong Media RSS Namespace. Caused by a long-standing typo in the spec.
     */
    public const NAMESPACE_MEDIARSS_WRONG = 'http://search.yahoo.com/mrss';

/**
     * Wrong Media RSS Namespace #2. New namespace introduced in Media RSS 1.5.
     */
    public const NAMESPACE_MEDIARSS_WRONG2 = 'http://video.search.yahoo.com/mrss';

/**
     * Wrong Media RSS Namespace #3. A possible typo of the Media RSS 1.5 namespace.
     */
    public const NAMESPACE_MEDIARSS_WRONG3 = 'http://video.search.yahoo.com/mrss/';

/**
     * Wrong Media RSS Namespace #4. New spec location after the RSS Advisory Board takes it over, but not a valid namespace.
     */
    public const NAMESPACE_MEDIARSS_WRONG4 = 'http://www.rssboard.org/media-rss';

/**
     * Wrong Media RSS Namespace #5. A possible typo of the RSS Advisory Board URL.
     */
    public const NAMESPACE_MEDIARSS_WRONG5 = 'http://www.rssboard.org/media-rss/';

/**
     * iTunes RSS Namespace
     */
    public const NAMESPACE_ITUNES = 'http://www.itunes.com/dtds/podcast-1.0.dtd';

/**
     * XHTML Namespace
     */
    public const NAMESPACE_XHTML = 'http://www.w3.org/1999/xhtml';

/**
     * IANA Link Relations Registry
     */
    public const IANA_LINK_RELATIONS_REGISTRY = 'http://www.iana.org/assignments/relation/';

/**
     * No file source
     */
    public const FILE_SOURCE_NONE = 0;

/**
     * Remote file source
     */
    public const FILE_SOURCE_REMOTE = 1;

/**
     * Local file source
     */
    public const FILE_SOURCE_LOCAL = 2;

/**
     * fsockopen() file source
     */
    public const FILE_SOURCE_FSOCKOPEN = 4;

/**
     * cURL file source
     */
    public const FILE_SOURCE_CURL = 8;

/**
     * file_get_contents() file source
     */
    public const FILE_SOURCE_FILE_GET_CONTENTS = 16;

/**
     * @internal Default value of the HTTP Accept header when fetching/locating feeds
     */
    public const DEFAULT_HTTP_ACCEPT_HEADER = 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1';

/**
     * @var array<string, mixed> Raw data
     * @access private
     */
    public $data = [];

/**
     * @var string|string[]|null Error string (or array when multiple feeds are initialized)
     * @access private
     */
    public $error = null;

/**
     * @var int HTTP status code
     * @see SimplePie::status_code()
     * @access private
     */
    public $status_code = 0;

/**
     * @var Sanitize instance of Sanitize class
     * @see SimplePie::set_sanitize_class()
     * @access private
     */
    public $sanitize;

/**
     * @var string SimplePie Useragent
     * @see SimplePie::set_useragent()
     * @access private
     */
    public $useragent = '';

/**
     * @var string Feed URL
     * @see SimplePie::set_feed_url()
     * @access private
     */
    public $feed_url;

/**
     * @var ?string Original feed URL, or new feed URL iff HTTP 301 Moved Permanently
     * @see SimplePie::subscribe_url()
     * @access private
     */
    public $permanent_url = null;

/**
     * @var File Instance of File class to use as a feed
     * @see SimplePie::set_file()
     */
    private $file;

/**
     * @var string|false Raw feed data
     * @see SimplePie::set_raw_data()
     * @access private
     */
    public $raw_data;

/**
     * @var int Timeout for fetching remote files
     * @see SimplePie::set_timeout()
     * @access private
     */
    public $timeout = 10;

/**
     * @var array<int, mixed> Custom curl options
     * @see SimplePie::set_curl_options()
     * @access private
     */
    public $curl_options = [];

/**
     * @var bool Forces fsockopen() to be used for remote files instead
     * of cURL, even if a new enough version is installed
     * @see SimplePie::force_fsockopen()
     * @access private
     */
    public $force_fsockopen = false;

/**
     * @var bool Force the given data/URL to be treated as a feed no matter what
     * it appears like
     * @see SimplePie::force_feed()
     * @access private
     */
    public $force_feed = false;

/**
     * @var bool Enable/Disable Caching
     * @see SimplePie::enable_cache()
     * @access private
     */
    private $enable_cache = true;

/**
     * @var DataCache|null
     * @see SimplePie::set_cache()
     */
    private $cache = null;

/**
     * @var NameFilter
     * @see SimplePie::set_cache_namefilter()
     */
    private $cache_namefilter;

/**
     * @var bool Force SimplePie to fallback to expired cache, if enabled,
     * when feed is unavailable.
     * @see SimplePie::force_cache_fallback()
     * @access private
     */
    public $force_cache_fallback = false;

/**
     * @var int Cache duration (in seconds)
     * @see SimplePie::set_cache_duration()
     * @access private
     */
    public $cache_duration = 3600;

/**
     * @var int Auto-discovery cache duration (in seconds)
     * @see SimplePie::set_autodiscovery_cache_duration()
     * @access private
     */
    public $autodiscovery_cache_duration = 604800; // 7 Days.

/**
     * @var string Cache location (relative to executing script)
     * @see SimplePie::set_cache_location()
     * @access private
     */
    public $cache_location = './cache';

/**
     * @var string&(callable(string): string) Function that creates the cache filename
     * @see SimplePie::set_cache_name_function()
     * @access private
     */
    public $cache_name_function = 'md5';

/**
     * @var bool Reorder feed by date descending
     * @see SimplePie::enable_order_by_date()
     * @access private
     */
    public $order_by_date = true;

/**
     * @var mixed Force input encoding to be set to the follow value
     * (false, or anything type-cast to false, disables this feature)
     * @see SimplePie::set_input_encoding()
     * @access private
     */
    public $input_encoding = false;

/**
     * @var self::LOCATOR_* Feed Autodiscovery Level
     * @see SimplePie::set_autodiscovery_level()
     * @access private
     */
    public $autodiscovery = self::LOCATOR_ALL;

/**
     * Class registry object
     *
     * @var Registry
     */
    public $registry;

/**
     * @var int Maximum number of feeds to check with autodiscovery
     * @see SimplePie::set_max_checked_feeds()
     * @access private
     */
    public $max_checked_feeds = 10;

/**
     * @var array<Response>|null All the feeds found during the autodiscovery process
     * @see SimplePie::get_all_discovered_feeds()
     * @access private
     */
    public $all_discovered_feeds = [];

/**
     * @var string Web-accessible path to the handler_image.php file.
     * @see SimplePie::set_image_handler()
     * @access private
     */
    public $image_handler = '';

/**
     * @var array<string> Stores the URLs when multiple feeds are being initialized.
     * @see SimplePie::set_feed_url()
     * @access private
     */
    public $multifeed_url = [];

/**
     * @var array<int, static> Stores SimplePie objects when multiple feeds initialized.
     * @access private
     */
    public $multifeed_objects = [];

/**
     * @var array<mixed> Stores the get_object_vars() array for use with multifeeds.
     * @see SimplePie::set_feed_url()
     * @access private
     */
    public $config_settings = null;

/**
     * @var int Stores the number of items to return per-feed with multifeeds.
     * @see SimplePie::set_item_limit()
     * @access private
     */
    public $item_limit = 0;

/**
     * @var bool Stores if last-modified and/or etag headers were sent with the
     * request when checking a feed.
     */
    public $check_modified = false;

/**
     * @var array<string> Stores the default attributes to be stripped by strip_attributes().
     * @see SimplePie::strip_attributes()
     * @access private
     */
    public $strip_attributes = ['bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc'];

/**
     * @var array<string, array<string, string>> Stores the default attributes to add to different tags by add_attributes().
     * @see SimplePie::add_attributes()
     * @access private
     */
    public $add_attributes = ['audio' => ['preload' => 'none'], 'iframe' => ['sandbox' => 'allow-scripts allow-same-origin'], 'video' => ['preload' => 'none']];

/**
     * @var array<string> Stores the default tags to be stripped by strip_htmltags().
     * @see SimplePie::strip_htmltags()
     * @access private
     */
    public $strip_htmltags = ['base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style'];

/**
     * @var string[]|string Stores the default attributes to be renamed by rename_attributes().
     * @see SimplePie::rename_attributes()
     * @access private
     */
    public $rename_attributes = [];

/**
     * @var bool Should we throw exceptions, or use the old-style error property?
     * @access private
     */
    public $enable_exceptions = false;

/**
     * @var Client|null
     */
    private $http_client = null;

/** @var bool Whether HTTP client has been injected */
    private $http_client_injected = false;

/**
     * The SimplePie class contains feed level data and options
     *
     * To use SimplePie, create the SimplePie object with no parameters. You can
     * then set configuration options using the provided methods. After setting
     * them, you must initialise the feed using $feed->init(). At that point the
     * object's methods and properties will be available to you.
     *
     * Previously, it was possible to pass in the feed URL along with cache
     * options directly into the constructor. This has been removed as of 1.3 as
     * it caused a lot of confusion.
     *
     * @since 1.0 Preview Release
     */
    public function __construct()
    {
        if (version_compare(PHP_VERSION, '7.2', '<')) {
            exit('Please upgrade to PHP 7.2 or newer.');
        }

$this->set_useragent();

$this->set_cache_namefilter(new CallableNameFilter($this->cache_name_function));

// Other objects, instances created here so we can set options on them
        $this->sanitize = new Sanitize();
        $this->registry = new Registry();

if (func_num_args() > 0) {
            trigger_error('Passing parameters to the constructor is no longer supported. Please use set_feed_url(), set_cache_location(), and set_cache_duration() directly.', \E_USER_DEPRECATED);

$args = func_get_args();
            switch (count($args)) {
                case 3:
                    $this->set_cache_duration($args[2]);
                    // no break
                case 2:
                    $this->set_cache_location($args[1]);
                    // no break
                case 1:
                    $this->set_feed_url($args[0]);
                    $this->init();
            }
        }
    }

/**
     * Used for converting object to a string
     * @return string
     */
    public function __toString()
    {
        return md5(serialize($this->data));
    }

/**
     * Remove items that link back to this before destroying this object
     * @return void
     */
    public function __destruct()
    {
        if (!gc_enabled()) {
            if (!empty($this->data['items'])) {
                foreach ($this->data['items'] as $item) {
                    $item->__destruct();
                }
                unset($item, $this->data['items']);
            }
            if (!empty($this->data['ordered_items'])) {
                foreach ($this->data['ordered_items'] as $item) {
                    $item->__destruct();
                }
                unset($item, $this->data['ordered_items']);
            }
        }
    }

/**
     * Force the given data/URL to be treated as a feed
     *
     * This tells SimplePie to ignore the content-type provided by the server.
     * Be careful when using this option, as it will also disable autodiscovery.
     *
     * @since 1.1
     * @param bool $enable Force the given data/URL to be treated as a feed
     * @return void
     */
    public function force_feed(bool $enable = false)
    {
        $this->force_feed = $enable;
    }

/**
     * Set the URL of the feed you want to parse
     *
     * This allows you to enter the URL of the feed you want to parse, or the
     * website you want to try to use auto-discovery on. This takes priority
     * over any set raw data.
     *
     * Deprecated since 1.9.0: You can set multiple feeds to mash together by passing an array instead
     * of a string for the $url. Remember that with each additional feed comes
     * additional processing and resources.
     *
     * @since 1.0 Preview Release
     * @see set_raw_data()
     * @param string|string[] $url This is the URL (or (deprecated) array of URLs) that you want to parse.
     * @return void
     */
    public function set_feed_url($url)
    {
        $this->multifeed_url = [];
        if (is_array($url)) {
            trigger_error('Fetching multiple feeds with single SimplePie instance is deprecated since SimplePie 1.9.0, create one SimplePie instance per feed and use SimplePie::merge_items to get a single list of items.', \E_USER_DEPRECATED);
            foreach ($url as $value) {
                $this->multifeed_url[] = $this->registry->call(Misc::class, 'fix_protocol', [$value, 1]);
            }
        } else {
            $this->feed_url = $this->registry->call(Misc::class, 'fix_protocol', [$url, 1]);
            $this->permanent_url = $this->feed_url;
        }
    }

/**
     * Set an instance of {@see File} to use as a feed
     *
     * @deprecated since SimplePie 1.9.0, use \SimplePie\SimplePie::set_http_client() or \SimplePie\SimplePie::set_raw_data() instead.
     *
     * @param File &$file
     * @return bool True on success, false on failure
     */
    public function set_file(File &$file)
    {
        // trigger_error(sprintf('SimplePie\SimplePie::set_file() is deprecated since SimplePie 1.9.0, please use "SimplePie\SimplePie::set_http_client()" or "SimplePie\SimplePie::set_raw_data()" instead.'), \E_USER_DEPRECATED);

$this->feed_url = $file->get_final_requested_uri();
        $this->permanent_url = $this->feed_url;
        $this->file = &$file;

return true;
    }

/**
     * Set the raw XML data to parse
     *
     * Allows you to use a string of RSS/Atom data instead of a remote feed.
     *
     * If you have a feed available as a string in PHP, you can tell SimplePie
     * to parse that data string instead of a remote feed. Any set feed URL
     * takes precedence.
     *
     * @since 1.0 Beta 3
     * @param string $data RSS or Atom data as a string.
     * @see set_feed_url()
     * @return void
     */
    public function set_raw_data(string $data)
    {
        $this->raw_data = $data;
    }

/**
     * Set a PSR-18 client and PSR-17 factories
     *
     * Allows you to use your own HTTP client implementations.
     * This will become required with SimplePie 2.0.0.
     */
    final public function set_http_client(
        ClientInterface $http_client,
        RequestFactoryInterface $request_factory,
        UriFactoryInterface $uri_factory
    ): void {
        $this->http_client = new Psr18Client($http_client, $request_factory, $uri_factory);
    }

/**
     * Set the default timeout for fetching remote feeds
     *
     * This allows you to change the maximum time the feed's server to respond
     * and send the feed back.
     *
     * @since 1.0 Beta 3
     * @param int $timeout The maximum number of seconds to spend waiting to retrieve a feed.
     * @return void
     */
    public function set_timeout(int $timeout = 10)
    {
        if ($this->http_client_injected) {
            throw new SimplePieException(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure timeout in your HTTP client instead.',
                __METHOD__,
                self::class
            ));
        }

$this->timeout = (int) $timeout;

// Reset a possible existing FileClient,
        // so a new client with the changed value will be created
        if (is_object($this->http_client) && $this->http_client instanceof FileClient) {
            $this->http_client = null;
        } elseif (is_object($this->http_client)) {
            // Trigger notice if a PSR-18 client was set
            trigger_error(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure the timeout in your HTTP client instead.',
                __METHOD__,
                get_class($this)
            ), \E_USER_NOTICE);
        }
    }

/**
     * Set custom curl options
     *
     * This allows you to change default curl options
     *
     * @since 1.0 Beta 3
     * @param array<int, mixed> $curl_options Curl options to add to default settings
     * @return void
     */
    public function set_curl_options(array $curl_options = [])
    {
        if ($this->http_client_injected) {
            throw new SimplePieException(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure custom curl options in your HTTP client instead.',
                __METHOD__,
                self::class
            ));
        }

$this->curl_options = $curl_options;

// Reset a possible existing FileClient,
        // so a new client with the changed value will be created
        if (is_object($this->http_client) && $this->http_client instanceof FileClient) {
            $this->http_client = null;
        } elseif (is_object($this->http_client)) {
            // Trigger notice if a PSR-18 client was set
            trigger_error(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure the curl options in your HTTP client instead.',
                __METHOD__,
                get_class($this)
            ), \E_USER_NOTICE);
        }
    }

/**
     * Force SimplePie to use fsockopen() instead of cURL
     *
     * @since 1.0 Beta 3
     * @param bool $enable Force fsockopen() to be used
     * @return void
     */
    public function force_fsockopen(bool $enable = false)
    {
        if ($this->http_client_injected) {
            throw new SimplePieException(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure fsockopen in your HTTP client instead.',
                __METHOD__,
                self::class
            ));
        }

$this->force_fsockopen = $enable;

// Reset a possible existing FileClient,
        // so a new client with the changed value will be created
        if (is_object($this->http_client) && $this->http_client instanceof FileClient) {
            $this->http_client = null;
        } elseif (is_object($this->http_client)) {
            // Trigger notice if a PSR-18 client was set
            trigger_error(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure fsockopen in your HTTP client instead.',
                __METHOD__,
                get_class($this)
            ), \E_USER_NOTICE);
        }
    }

/**
     * Enable/disable caching in SimplePie.
     *
     * This option allows you to disable caching all-together in SimplePie.
     * However, disabling the cache can lead to longer load times.
     *
     * @since 1.0 Preview Release
     * @param bool $enable Enable caching
     * @return void
     */
    public function enable_cache(bool $enable = true)
    {
        $this->enable_cache = $enable;
    }

/**
     * Set a PSR-16 implementation as cache
     *
     * @param CacheInterface $cache The PSR-16 cache implementation
     *
     * @return void
     */
    public function set_cache(CacheInterface $cache)
    {
        $this->cache = new Psr16($cache);
    }

/**
     * SimplePie to continue to fall back to expired cache, if enabled, when
     * feed is unavailable.
     *
     * This tells SimplePie to ignore any file errors and fall back to cache
     * instead. This only works if caching is enabled and cached content
     * still exists.
     *
     * @deprecated since SimplePie 1.8.0, expired cache will not be used anymore.
     *
     * @param bool $enable Force use of cache on fail.
     * @return void
     */
    public function force_cache_fallback(bool $enable = false)
    {
        // @trigger_error(sprintf('SimplePie\SimplePie::force_cache_fallback() is deprecated since SimplePie 1.8.0, expired cache will not be used anymore.'), \E_USER_DEPRECATED);
        $this->force_cache_fallback = $enable;
    }

/**
     * Set the length of time (in seconds) that the contents of a feed will be
     * cached
     *
     * @param int $seconds The feed content cache duration
     * @return void
     */
    public function set_cache_duration(int $seconds = 3600)
    {
        $this->cache_duration = $seconds;
    }

/**
     * Set the length of time (in seconds) that the autodiscovered feed URL will
     * be cached
     *
     * @param int $seconds The autodiscovered feed URL cache duration.
     * @return void
     */
    public function set_autodiscovery_cache_duration(int $seconds = 604800)
    {
        $this->autodiscovery_cache_duration = $seconds;
    }

/**
     * Set the file system location where the cached files should be stored
     *
     * @deprecated since SimplePie 1.8.0, use SimplePie::set_cache() instead.
     *
     * @param string $location The file system location.
     * @return void
     */
    public function set_cache_location(string $location = './cache')
    {
        // @trigger_error(sprintf('SimplePie\SimplePie::set_cache_location() is deprecated since SimplePie 1.8.0, please use "SimplePie\SimplePie::set_cache()" instead.'), \E_USER_DEPRECATED);
        $this->cache_location = $location;
    }

/**
     * Return the filename (i.e. hash, without path and without extension) of the file to cache a given URL.
     *
     * @param string $url The URL of the feed to be cached.
     * @return string A filename (i.e. hash, without path and without extension).
     */
    public function get_cache_filename(string $url)
    {
        // Append custom parameters to the URL to avoid cache pollution in case of multiple calls with different parameters.
        $url .= $this->force_feed ? '#force_feed' : '';
        $options = [];
        if ($this->timeout != 10) {
            $options[CURLOPT_TIMEOUT] = $this->timeout;
        }
        if ($this->useragent !== Misc::get_default_useragent()) {
            $options[CURLOPT_USERAGENT] = $this->useragent;
        }
        if (!empty($this->curl_options)) {
            foreach ($this->curl_options as $k => $v) {
                $options[$k] = $v;
            }
        }
        if (!empty($options)) {
            ksort($options);
            $url .= '#' . urlencode(var_export($options, true));
        }

return $this->cache_namefilter->filter($url);
    }

/**
     * Set whether feed items should be sorted into reverse chronological order
     *
     * @param bool $enable Sort as reverse chronological order.
     * @return void
     */
    public function enable_order_by_date(bool $enable = true)
    {
        $this->order_by_date = $enable;
    }

/**
     * Set the character encoding used to parse the feed
     *
     * This overrides the encoding reported by the feed, however it will fall
     * back to the normal encoding detection if the override fails
     *
     * @param string|false $encoding Character encoding
     * @return void
     */
    public function set_input_encoding($encoding = false)
    {
        if ($encoding) {
            $this->input_encoding = (string) $encoding;
        } else {
            $this->input_encoding = false;
        }
    }

/**
     * Set how much feed autodiscovery to do
     *
     * @see self::LOCATOR_NONE
     * @see self::LOCATOR_AUTODISCOVERY
     * @see self::LOCATOR_LOCAL_EXTENSION
     * @see self::LOCATOR_LOCAL_BODY
     * @see self::LOCATOR_REMOTE_EXTENSION
     * @see self::LOCATOR_REMOTE_BODY
     * @see self::LOCATOR_ALL
     * @param self::LOCATOR_* $level Feed Autodiscovery Level (level can be a combination of the above constants, see bitwise OR operator)
     * @return void
     */
    public function set_autodiscovery_level(int $level = self::LOCATOR_ALL)
    {
        $this->autodiscovery = $level;
    }

/**
     * Get the class registry
     *
     * Use this to override SimplePie's default classes
     *
     * @return Registry
     */
    public function &get_registry()
    {
        return $this->registry;
    }

/**
     * Set which class SimplePie uses for caching
     *
     * @deprecated since SimplePie 1.3, use {@see set_cache()} instead
     *
     * @param class-string<Cache> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_cache_class(string $class = Cache::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::set_cache()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Cache::class, $class, true);
    }

/**
     * Set which class SimplePie uses for auto-discovery
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Locator> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_locator_class(string $class = Locator::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Locator::class, $class, true);
    }

/**
     * Set which class SimplePie uses for XML parsing
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Parser> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_parser_class(string $class = Parser::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Parser::class, $class, true);
    }

/**
     * Set which class SimplePie uses for remote file fetching
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<File> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_file_class(string $class = File::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(File::class, $class, true);
    }

/**
     * Set which class SimplePie uses for data sanitization
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Sanitize> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_sanitize_class(string $class = Sanitize::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Sanitize::class, $class, true);
    }

/**
     * Set which class SimplePie uses for handling feed items
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Item> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_item_class(string $class = Item::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Item::class, $class, true);
    }

/**
     * Set which class SimplePie uses for handling author data
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Author> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_author_class(string $class = Author::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Author::class, $class, true);
    }

/**
     * Set which class SimplePie uses for handling category data
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Category> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_category_class(string $class = Category::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Category::class, $class, true);
    }

/**
     * Set which class SimplePie uses for feed enclosures
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Enclosure> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_enclosure_class(string $class = Enclosure::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Enclosure::class, $class, true);
    }

/**
     * Set which class SimplePie uses for `<media:text>` captions
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Caption> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_caption_class(string $class = Caption::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Caption::class, $class, true);
    }

/**
     * Set which class SimplePie uses for `<media:copyright>`
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Copyright> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_copyright_class(string $class = Copyright::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Copyright::class, $class, true);
    }

/**
     * Set which class SimplePie uses for `<media:credit>`
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Credit> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_credit_class(string $class = Credit::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Credit::class, $class, true);
    }

/**
     * Set which class SimplePie uses for `<media:rating>`
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Rating> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_rating_class(string $class = Rating::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Rating::class, $class, true);
    }

/**
     * Set which class SimplePie uses for `<media:restriction>`
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Restriction> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_restriction_class(string $class = Restriction::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Restriction::class, $class, true);
    }

/**
     * Set which class SimplePie uses for content-type sniffing
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Sniffer> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_content_type_sniffer_class(string $class = Sniffer::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Sniffer::class, $class, true);
    }

/**
     * Set which class SimplePie uses item sources
     *
     * @deprecated since SimplePie 1.3, use {@see get_registry()} instead
     *
     * @param class-string<Source> $class Name of custom class
     *
     * @return bool True on success, false otherwise
     */
    public function set_source_class(string $class = Source::class)
    {
        trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.3, please use "SimplePie\SimplePie::get_registry()" instead.', __METHOD__), \E_USER_DEPRECATED);

return $this->registry->register(Source::class, $class, true);
    }

/**
     * Set the user agent string
     *
     * @param string $ua New user agent string.
     * @return void
     */
    public function set_useragent(?string $ua = null)
    {
        if ($this->http_client_injected) {
            throw new SimplePieException(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure user agent string in your HTTP client instead.',
                __METHOD__,
                self::class
            ));
        }

if ($ua === null) {
            $ua = Misc::get_default_useragent();
        }

$this->useragent = (string) $ua;

// Reset a possible existing FileClient,
        // so a new client with the changed value will be created
        if (is_object($this->http_client) && $this->http_client instanceof FileClient) {
            $this->http_client = null;
        } elseif (is_object($this->http_client)) {
            // Trigger notice if a PSR-18 client was set
            trigger_error(sprintf(
                'Using "%s()" has no effect, because you already provided a HTTP client with "%s::set_http_client()". Configure the useragent in your HTTP client instead.',
                __METHOD__,
                get_class($this)
            ), \E_USER_NOTICE);
        }
    }

/**
     * Set a namefilter to modify the cache filename with
     *
     * @param NameFilter $filter
     *
     * @return void
     */
    public function set_cache_namefilter(NameFilter $filter): void
    {
        $this->cache_namefilter = $filter;
    }

/**
     * Set callback function to create cache filename with
     *
     * @deprecated since SimplePie 1.8.0, use {@see set_cache_namefilter()} instead
     *
     * @param (string&(callable(string): string))|null $function Callback function
     * @return void
     */
    public function set_cache_name_function(?string $function = null)
    {
        // trigger_error(sprintf('"%s()" is deprecated since SimplePie 1.8.0, please use "SimplePie\SimplePie::set_cache_namefilter()" instead.', __METHOD__), \E_USER_DEPRECATED);

if ($function === null) {
            $function = 'md5';
        }

$this->cache_name_function = $function;

$this->set_cache_namefilter(new CallableNameFilter($this->cache_name_function));
    }

/**
     * Set options to make SP as fast as possible
     *
     * Forgoes a substantial amount of data sanitization in favor of speed. This
     * turns SimplePie into a dumb parser of feeds.
     *
     * @param bool $set Whether to set them or not
     * @return void
     */
    public function set_stupidly_fast(bool $set = false)
    {
        if ($set) {
            $this->enable_order_by_date(false);
            $this->remove_div(false);
            $this->strip_comments(false);
            $this->strip_htmltags([]);
            $this->strip_attributes([]);
            $this->add_attributes([]);
            $this->set_image_handler(false);
            $this->set_https_domains([]);
        }
    }

/**
     * Set maximum number of feeds to check with autodiscovery
     *
     * @param int $max Maximum number of feeds to check
     * @return void
     */
    public function set_max_checked_feeds(int $max = 10)
    {
        $this->max_checked_feeds = $max;
    }

/**
     * @return void
     */
    public function remove_div(bool $enable = true)
    {
        $this->sanitize->remove_div($enable);
    }

/**
     * @param string[]|string|false $tags Set a list of tags to strip, or set empty string to use default tags, or false to strip nothing.
     * @return void
     */
    public function strip_htmltags($tags = '', ?bool $encode = null)
    {
        if ($tags === '') {
            $tags = $this->strip_htmltags;
        }
        $this->sanitize->strip_htmltags($tags);
        if ($encode !== null) {
            $this->sanitize->encode_instead_of_strip($encode);
        }
    }

/**
     * @return void
     */
    public function encode_instead_of_strip(bool $enable = true)
    {
        $this->sanitize->encode_instead_of_strip($enable);
    }

/**
     * @param string[]|string $attribs
     * @return void
     */
    public function rename_attributes($attribs = '')
    {
        if ($attribs === '') {
            $attribs = $this->rename_attributes;
        }
        $this->sanitize->rename_attributes($attribs);
    }

/**
     * @param string[]|string $attribs
     * @return void
     */
    public function strip_attributes($attribs = '')
    {
        if ($attribs === '') {
            $attribs = $this->strip_attributes;
        }
        $this->sanitize->strip_attributes($attribs);
    }

/**
     * @param array<string, array<string, string>>|'' $attribs
     * @return void
     */
    public function add_attributes($attribs = '')
    {
        if ($attribs === '') {
            $attribs = $this->add_attributes;
        }
        $this->sanitize->add_attributes($attribs);
    }

/**
     * Set the output encoding
     *
     * Allows you to override SimplePie's output to match that of your webpage.
     * This is useful for times when your webpages are not being served as
     * UTF-8. This setting will be obeyed by {@see handle_content_type()}, and
     * is similar to {@see set_input_encoding()}.
     *
     * It should be noted, however, that not all character encodings can support
     * all characters. If your page is being served as ISO-8859-1 and you try
     * to display a Japanese feed, you'll likely see garbled characters.
     * Because of this, it is highly recommended to ensure that your webpages
     * are served as UTF-8.
     *
     * The number of supported character encodings depends on whether your web
     * host supports {@link http://php.net/mbstring mbstring},
     * {@link http://php.net/iconv iconv}, or both. See
     * {@link http://simplepie.org/wiki/faq/Supported_Character_Encodings} for
     * more information.
     *
     * @param string $encoding
     * @return void
     */
    public function set_output_encoding(string $encoding = 'UTF-8')
    {
        $this->sanitize->set_output_encoding($encoding);
    }

/**
     * @return void
     */
    public function strip_comments(bool $strip = false)
    {
        $this->sanitize->strip_comments($strip);
    }

/**
     * Set element/attribute key/value pairs of HTML attributes
     * containing URLs that need to be resolved relative to the feed
     *
     * Defaults to |a|@href, |area|@href, |blockquote|@cite, |del|@cite,
     * |form|@action, |img|@longdesc, |img|@src, |input|@src, |ins|@cite,
     * |q|@cite
     *
     * @since 1.0
     * @param array<string, string|string[]>|null $element_attribute Element/attribute key/value pairs, null for default
     * @return void
     */
    public function set_url_replacements(?array $element_attribute = null)
    {
        $this->sanitize->set_url_replacements($element_attribute);
    }

/**
     * Set the list of domains for which to force HTTPS.
     * @see Sanitize::set_https_domains()
     * @param array<string> $domains List of HTTPS domains. Example array('biz', 'example.com', 'example.org', 'www.example.net').
     * @return void
     */
    public function set_https_domains(array $domains = [])
    {
        $this->sanitize->set_https_domains($domains);
    }

/**
     * Set the handler to enable the display of cached images.
     *
     * @param string|false $page Web-accessible path to the handler_image.php file.
     * @param string $qs The query string that the value should be passed to.
     * @return void
     */
    public function set_image_handler($page = false, string $qs = 'i')
    {
        if ($page !== false) {
            $this->sanitize->set_image_handler($page . '?' . $qs . '=');
        } else {
            $this->image_handler = '';
        }
    }

/**
     * Set the limit for items returned per-feed with multifeeds
     *
     * @param int $limit The maximum number of items to return.
     * @return void
     */
    public function set_item_limit(int $limit = 0)
    {
        $this->item_limit = $limit;
    }

/**
     * Enable throwing exceptions
     *
     * @param bool $enable Should we throw exceptions, or use the old-style error property?
     * @return void
     */
    public function enable_exceptions(bool $enable = true)
    {
        $this->enable_exceptions = $enable;
    }

/**
     * Initialize the feed object
     *
     * This is what makes everything happen. Period. This is where all of the
     * configuration options get processed, feeds are fetched, cached, and
     * parsed, and all of that other good stuff.
     *
     * @return bool True if successful, false otherwise
     */
    public function init()
    {
        // Check absolute bare minimum requirements.
        if (!extension_loaded('xml') || !extension_loaded('pcre')) {
            $this->error = 'XML or PCRE extensions not loaded!';
            return false;
        }
        // Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
        elseif (!extension_loaded('xmlreader')) {
            static $xml_is_sane = null;
            if ($xml_is_sane === null) {
                $parser_check = xml_parser_create();
                xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
                if (\PHP_VERSION_ID < 80000) {
                    xml_parser_free($parser_check);
                }
                $xml_is_sane = isset($values[0]['value']);
            }
            if (!$xml_is_sane) {
                return false;
            }
        }

// The default sanitize class gets set in the constructor, check if it has
        // changed.
        if ($this->registry->get_class(Sanitize::class) !== Sanitize::class) {
            $this->sanitize = $this->registry->create(Sanitize::class);
        }
        if (method_exists($this->sanitize, 'set_registry')) {
            $this->sanitize->set_registry($this->registry);
        }

// Pass whatever was set with config options over to the sanitizer.
        // Pass the classes in for legacy support; new classes should use the registry instead
        $cache = $this->registry->get_class(Cache::class);
        \assert($cache !== null, 'Cache must be defined');
        $this->sanitize->pass_cache_data(
            $this->enable_cache,
            $this->cache_location,
            $this->cache_namefilter,
            $cache,
            $this->cache
        );

$http_client = $this->get_http_client();

if ($http_client instanceof Psr18Client) {
            $this->sanitize->set_http_client(
                $http_client->getHttpClient(),
                $http_client->getRequestFactory(),
                $http_client->getUriFactory()
            );
        }

if (!empty($this->multifeed_url)) {
            $i = 0;
            $success = 0;
            $this->multifeed_objects = [];
            $this->error = [];
            foreach ($this->multifeed_url as $url) {
                $this->multifeed_objects[$i] = clone $this;
                $this->multifeed_objects[$i]->set_feed_url($url);
                $single_success = $this->multifeed_objects[$i]->init();
                $success |= $single_success;
                if (!$single_success) {
                    $this->error[$i] = $this->multifeed_objects[$i]->error();
                }
                $i++;
            }
            return (bool) $success;
        } elseif ($this->feed_url === null && $this->raw_data === null) {
            return false;
        }

$this->error = null;
        $this->data = [];
        $this->check_modified = false;
        $this->multifeed_objects = [];
        $cache = false;

if ($this->feed_url !== null) {
            $parsed_feed_url = $this->registry->call(Misc::class, 'parse_url', [$this->feed_url]);

// Decide whether to enable caching
            if ($this->enable_cache && $parsed_feed_url['scheme'] !== '') {
                $cache = $this->get_cache($this->feed_url);
            }

// Fetch the data into $this->raw_data
            if (($fetched = $this->fetch_data($cache)) === true) {
                return true;
            } elseif ($fetched === false) {
                return false;
            }

[$headers, $sniffed] = $fetched;
        }

// Empty response check
        if (empty($this->raw_data)) {
            $this->error = "A feed could not be found at `$this->feed_url`. Empty body.";
            $this->registry->call(Misc::class, 'error', [$this->error, E_USER_NOTICE, __FILE__, __LINE__]);
            return false;
        }

// Set up array of possible encodings
        $encodings = [];

// First check to see if input has been overridden.
        if ($this->input_encoding !== false) {
            $encodings[] = strtoupper($this->input_encoding);
        }

$application_types = ['application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity'];
        $text_types = ['text/xml', 'text/xml-external-parsed-entity'];

// RFC 3023 (only applies to sniffed content)
        if (isset($sniffed)) {
            if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml') {
                if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                    $encodings[] = strtoupper($charset[1]);
                }
                $encodings = array_merge($encodings, $this->registry->call(Misc::class, 'xml_encoding', [$this->raw_data, &$this->registry]));
                $encodings[] = 'UTF-8';
            } elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml') {
                if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset)) {
                    $encodings[] = strtoupper($charset[1]);
                }
                $encodings[] = 'US-ASCII';
            }
            // Text MIME-type default
            elseif (substr($sniffed, 0, 5) === 'text/') {
                $encodings[] = 'UTF-8';
            }
        }

// Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
        $encodings = array_merge($encodings, $this->registry->call(Misc::class, 'xml_encoding', [$this->raw_data, &$this->registry]));
        $encodings[] = 'UTF-8';
        $encodings[] = 'ISO-8859-1';

// There's no point in trying an encoding twice
        $encodings = array_unique($encodings);

// Loop through each possible encoding, till we return something, or run out of possibilities
        foreach ($encodings as $encoding) {
            // Change the encoding to UTF-8 (as we always use UTF-8 internally)
            if ($utf8_data = $this->registry->call(Misc::class, 'change_encoding', [$this->raw_data, $encoding, 'UTF-8'])) {
                // Create new parser
                $parser = $this->registry->create(Parser::class);

// If it's parsed fine
                if ($parser->parse($utf8_data, 'UTF-8', $this->permanent_url ?? '')) {
                    $this->data = $parser->get_data();
                    if (!($this->get_type() & ~self::TYPE_NONE)) {
                        $this->error = "A feed could not be found at `$this->feed_url`. This does not appear to be a valid RSS or Atom feed.";
                        $this->registry->call(Misc::class, 'error', [$this->error, E_USER_NOTICE, __FILE__, __LINE__]);
                        return false;
                    }

if (isset($headers)) {
                        $this->data['headers'] = $headers;
                    }
                    $this->data['build'] = Misc::get_build();

// Cache the file if caching is enabled
                    $this->data['cache_expiration_time'] = $this->cache_duration + time();

if ($cache && !$cache->set_data($this->get_cache_filename($this->feed_url), $this->data, $this->cache_duration)) {
                        trigger_error("$this->cache_location is not writable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                    }
                    return true;
                }
            }
        }

if (isset($parser)) {
            // We have an error, just set Misc::error to it and quit
            $this->error = $this->feed_url;
            $this->error .= sprintf(' is invalid XML, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
        } else {
            $this->error = 'The data could not be converted to UTF-8.';
            if (!extension_loaded('mbstring') && !extension_loaded('iconv') && !class_exists('\UConverter')) {
                $this->error .= ' You MUST have either the iconv, mbstring or intl (PHP 5.5+) extension installed and enabled.';
            } else {
                $missingExtensions = [];
                if (!extension_loaded('iconv')) {
                    $missingExtensions[] = 'iconv';
                }
                if (!extension_loaded('mbstring')) {
                    $missingExtensions[] = 'mbstring';
                }
                if (!class_exists('\UConverter')) {
                    $missingExtensions[] = 'intl (PHP 5.5+)';
                }
                $this->error .= ' Try installing/enabling the ' . implode(' or ', $missingExtensions) . ' extension.';
            }
        }

$this->registry->call(Misc::class, 'error', [$this->error, E_USER_NOTICE, __FILE__, __LINE__]);

return false;
    }

/**
     * Fetch the data
     *
     * If the data is already cached, attempt to fetch it from there instead
     *
     * @param Base|DataCache|false $cache Cache handler, or false to not load from the cache
     * @return array{array<string, string>, string}|bool Returns true if the data was loaded from the cache, or an array of HTTP headers and sniffed type
     */
    protected function fetch_data(&$cache)
    {
        if ($cache instanceof Base) {
            // @trigger_error(sprintf('Providing $cache as "\SimplePie\Cache\Base" in %s() is deprecated since SimplePie 1.8.0, please provide "\SimplePie\Cache\DataCache" implementation instead.', __METHOD__), \E_USER_DEPRECATED);
            $cache = new BaseDataCache($cache);
        }

// @phpstan-ignore-next-line Enforce PHPDoc type.
        if ($cache !== false && !$cache instanceof DataCache) {
            throw new InvalidArgumentException(sprintf(
                '%s(): Argument #1 ($cache) must be of type %s|false',
                __METHOD__,
                DataCache::class
            ), 1);
        }

$cacheKey = $this->get_cache_filename($this->feed_url);

// If it's enabled, use the cache
        if ($cache) {
            // Load the Cache
            $this->data = $cache->get_data($cacheKey, []);

if (!empty($this->data)) {
                // If the cache is for an outdated build of SimplePie
                if (!isset($this->data['build']) || $this->data['build'] !== Misc::get_build()) {
                    $cache->delete_data($cacheKey);
                    $this->data = [];
                }
                // If we've hit a collision just rerun it with caching disabled
                elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url) {
                    $cache = false;
                    $this->data = [];
                }
                // If we've got a non feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL.
                elseif (isset($this->data['feed_url'])) {
                    // Do not need to do feed autodiscovery yet.
                    if ($this->data['feed_url'] !== $this->data['url']) {
                        $this->set_feed_url($this->data['feed_url']);
                        $this->data['url'] = $this->data['feed_url'];

$cache->set_data($this->get_cache_filename($this->feed_url), $this->data, $this->autodiscovery_cache_duration);

return $this->init();
                    }

$cache->delete_data($this->get_cache_filename($this->feed_url));
                    $this->data = [];
                }
                // Check if the cache has been updated
                elseif (!isset($this->data['cache_expiration_time']) || $this->data['cache_expiration_time'] < time()) {
                    // Want to know if we tried to send last-modified and/or etag headers
                    // when requesting this file. (Note that it's up to the file to
                    // support this, but we don't always send the headers either.)
                    $this->check_modified = true;
                    if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag'])) {
                        $headers = [
                            'Accept' => SimplePie::DEFAULT_HTTP_ACCEPT_HEADER,
                        ];
                        if (isset($this->data['headers']['last-modified'])) {
                            $headers['if-modified-since'] = $this->data['headers']['last-modified'];
                        }
                        if (isset($this->data['headers']['etag'])) {
                            $headers['if-none-match'] = $this->data['headers']['etag'];
                        }

try {
                            $file = $this->get_http_client()->request(Client::METHOD_GET, $this->feed_url, $headers);
                            $this->status_code = $file->get_status_code();
                        } catch (ClientException $th) {
                            $this->check_modified = false;
                            $this->status_code = 0;

if ($this->force_cache_fallback) {
                                $this->data['cache_expiration_time'] = $this->cache_duration + time();
                                $cache->set_data($cacheKey, $this->data, $this->cache_duration);

return true;
                            }

$failedFileReason = $th->getMessage();
                        }

if ($this->status_code === 304) {
                            // Set raw_data to false here too, to signify that the cache
                            // is still valid.
                            $this->raw_data = false;
                            $this->data['cache_expiration_time'] = $this->cache_duration + time();
                            $cache->set_data($cacheKey, $this->data, $this->cache_duration);

return true;
                        }
                    }
                }
                // If the cache is still valid, just return true
                else {
                    $this->raw_data = false;
                    return true;
                }
            }
            // If the cache is empty
            else {
                $this->data = [];
            }
        }

// If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
        if (!isset($file)) {
            if ($this->file instanceof File && $this->file->get_final_requested_uri() === $this->feed_url) {
                $file = &$this->file;
            } elseif (isset($failedFileReason)) {
                // Do not try to fetch again if we already failed once.
                // If the file connection had an error, set SimplePie::error to that and quit
                $this->error = $failedFileReason;

return !empty($this->data);
            } else {
                $headers = [
                    'Accept' => SimplePie::DEFAULT_HTTP_ACCEPT_HEADER,
                ];
                try {
                    $file = $this->get_http_client()->request(Client::METHOD_GET, $this->feed_url, $headers);
                } catch (ClientException $th) {
                    // If the file connection has an error, set SimplePie::error to that and quit
                    $this->error = $th->getMessage();

return !empty($this->data);
                }
            }
        }
        $this->status_code = $file->get_status_code();

// If the file connection has an error, set SimplePie::error to that and quit
        if (!(!Misc::is_remote_uri($file->get_final_requested_uri()) || ($file->get_status_code() === 200 || $file->get_status_code() > 206 && $file->get_status_code() < 300))) {
            $this->error = 'Retrieved unsupported status code "' . $this->status_code . '"';
            return !empty($this->data);
        }

if (!$this->force_feed) {
            // Check if the supplied URL is a feed, if it isn't, look for it.
            $locate = $this->registry->create(Locator::class, [
                (!$file instanceof File) ? File::fromResponse($file) : $file,
                $this->timeout,
                $this->useragent,
                $this->max_checked_feeds,
                $this->force_fsockopen,
                $this->curl_options
            ]);

$http_client = $this->get_http_client();

if ($http_client instanceof Psr18Client) {
                $locate->set_http_client(
                    $http_client->getHttpClient(),
                    $http_client->getRequestFactory(),
                    $http_client->getUriFactory()
                );
            }

if (!$locate->is_feed($file)) {
                $copyStatusCode = $file->get_status_code();
                $copyContentType = $file->get_header_line('content-type');
                try {
                    $microformats = false;
                    if (class_exists('DOMXpath') && function_exists('Mf2\parse')) {
                        $doc = new \DOMDocument();
                        @$doc->loadHTML($file->get_body_content());
                        $xpath = new \DOMXpath($doc);
                        // Check for both h-feed and h-entry, as both a feed with no entries
                        // and a list of entries without an h-feed wrapper are both valid.
                        $query = '//*[contains(concat(" ", @class, " "), " h-feed ") or '.
                            'contains(concat(" ", @class, " "), " h-entry ")]';

/** @var \DOMNodeList<\DOMElement> $result */
                        $result = $xpath->query($query);
                        $microformats = $result->length !== 0;
                    }
                    // Now also do feed discovery, but if microformats were found don't
                    // overwrite the current value of file.
                    $discovered = $locate->find(
                        $this->autodiscovery,
                        $this->all_discovered_feeds
                    );
                    if ($microformats) {
                        $hub = $locate->get_rel_link('hub');
                        $self = $locate->get_rel_link('self');
                        if ($hub || $self) {
                            $file = $this->store_links($file, $hub, $self);
                        }
                        // Push the current file onto all_discovered feeds so the user can
                        // be shown this as one of the options.
                        if ($this->all_discovered_feeds !== null) {
                            $this->all_discovered_feeds[] = $file;
                        }
                    } else {
                        if ($discovered) {
                            $file = $discovered;
                        } else {
                            // We need to unset this so that if SimplePie::set_file() has
                            // been called that object is untouched
                            unset($file);
                            $this->error = "A feed could not be found at `$this->feed_url`; the status code is `$copyStatusCode` and content-type is `$copyContentType`";
                            $this->registry->call(Misc::class, 'error', [$this->error, E_USER_NOTICE, __FILE__, __LINE__]);
                            return false;
                        }
                    }
                } catch (SimplePieException $e) {
                    // We need to unset this so that if SimplePie::set_file() has been called that object is untouched
                    unset($file);
                    // This is usually because DOMDocument doesn't exist
                    $this->error = $e->getMessage();
                    $this->registry->call(Misc::class, 'error', [$this->error, E_USER_NOTICE, $e->getFile(), $e->getLine()]);
                    return false;
                }

if ($cache) {
                    $this->data = [
                        'url' => $this->feed_url,
                        'feed_url' => $file->get_final_requested_uri(),
                        'build' => Misc::get_build(),
                        'cache_expiration_time' => $this->cache_duration + time(),
                    ];

if (!$cache->set_data($cacheKey, $this->data, $this->cache_duration)) {
                        trigger_error("$this->cache_location is not writable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                    }
                }
            }
            $this->feed_url = $file->get_final_requested_uri();
            $locate = null;
        }

$this->raw_data = $file->get_body_content();
        $this->permanent_url = $file->get_permanent_uri();

$headers = [];
        foreach ($file->get_headers() as $key => $values) {
            $headers[$key] = implode(', ', $values);
        }

$sniffer = $this->registry->create(Sniffer::class, [&$file]);
        $sniffed = $sniffer->get_type();

return [$headers, $sniffed];
    }

/**
     * Get the error message for the occurred error
     *
     * @return string|string[]|null Error message, or array of messages for multifeeds
     */
    public function error()
    {
        return $this->error;
    }

/**
     * Get the last HTTP status code
     *
     * @return int Status code
     */
    public function status_code()
    {
        return $this->status_code;
    }

/**
     * Get the raw XML
     *
     * This is the same as the old `$feed->enable_xml_dump(true)`, but returns
     * the data instead of printing it.
     *
     * @return string|false Raw XML data, false if the cache is used
     */
    public function get_raw_data()
    {
        return $this->raw_data;
    }

/**
     * Get the character encoding used for output
     *
     * @since Preview Release
     * @return string
     */
    public function get_encoding()
    {
        return $this->sanitize->output_encoding;
    }

/**
     * Send the content-type header with correct encoding
     *
     * This method ensures that the SimplePie-enabled page is being served with
     * the correct {@link http://www.iana.org/assignments/media-types/ mime-type}
     * and character encoding HTTP headers (character encoding determined by the
     * {@see set_output_encoding} config option).
     *
     * This won't work properly if any content or whitespace has already been
     * sent to the browser, because it relies on PHP's
     * {@link http://php.net/header header()} function, and these are the
     * circumstances under which the function works.
     *
     * Because it's setting these settings for the entire page (as is the nature
     * of HTTP headers), this should only be used once per page (again, at the
     * top).
     *
     * @param string $mime MIME type to serve the page as
     * @return void
     */
    public function handle_content_type(string $mime = 'text/html')
    {
        if (!headers_sent()) {
            $header = "Content-type: $mime;";
            if ($this->get_encoding()) {
                $header .= ' charset=' . $this->get_encoding();
            } else {
                $header .= ' charset=UTF-8';
            }
            header($header);
        }
    }

/**
     * Get the type of the feed
     *
     * This returns a self::TYPE_* constant, which can be tested against
     * using {@link http://php.net/language.operators.bitwise bitwise operators}
     *
     * @since 0.8 (usage changed to using constants in 1.0)
     * @see self::TYPE_NONE Unknown.
     * @see self::TYPE_RSS_090 RSS 0.90.
     * @see self::TYPE_RSS_091_NETSCAPE RSS 0.91 (Netscape).
     * @see self::TYPE_RSS_091_USERLAND RSS 0.91 (Userland).
     * @see self::TYPE_RSS_091 RSS 0.91.
     * @see self::TYPE_RSS_092 RSS 0.92.
     * @see self::TYPE_RSS_093 RSS 0.93.
     * @see self::TYPE_RSS_094 RSS 0.94.
     * @see self::TYPE_RSS_10 RSS 1.0.
     * @see self::TYPE_RSS_20 RSS 2.0.x.
     * @see self::TYPE_RSS_RDF RDF-based RSS.
     * @see self::TYPE_RSS_SYNDICATION Non-RDF-based RSS (truly intended as syndication format).
     * @see self::TYPE_RSS_ALL Any version of RSS.
     * @see self::TYPE_ATOM_03 Atom 0.3.
     * @see self::TYPE_ATOM_10 Atom 1.0.
     * @see self::TYPE_ATOM_ALL Any version of Atom.
     * @see self::TYPE_ALL Any known/supported feed type.
     * @return int-mask-of<self::TYPE_*> constant
     */
    public function get_type()
    {
        if (!isset($this->data['type'])) {
            $this->data['type'] = self::TYPE_ALL;
            if (isset($this->data['child'][self::NAMESPACE_ATOM_10]['feed'])) {
                $this->data['type'] &= self::TYPE_ATOM_10;
            } elseif (isset($this->data['child'][self::NAMESPACE_ATOM_03]['feed'])) {
                $this->data['type'] &= self::TYPE_ATOM_03;
            } elseif (isset($this->data['child'][self::NAMESPACE_RDF]['RDF'])) {
                if (isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_10]['channel'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_10]['image'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_10]['item'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_10]['textinput'])) {
                    $this->data['type'] &= self::TYPE_RSS_10;
                }
                if (isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_090]['channel'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_090]['image'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_090]['item'])
                || isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][self::NAMESPACE_RSS_090]['textinput'])) {
                    $this->data['type'] &= self::TYPE_RSS_090;
                }
            } elseif (isset($this->data['child'][self::NAMESPACE_RSS_20]['rss'])) {
                $this->data['type'] &= self::TYPE_RSS_ALL;
                if (isset($this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version'])) {
                    switch (trim($this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version'])) {
                        case '0.91':
                            $this->data['type'] &= self::TYPE_RSS_091;
                            if (isset($this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['child'][self::NAMESPACE_RSS_20]['skiphours']['hour'][0]['data'])) {
                                switch (trim($this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['child'][self::NAMESPACE_RSS_20]['skiphours']['hour'][0]['data'])) {
                                    case '0':
                                        $this->data['type'] &= self::TYPE_RSS_091_NETSCAPE;
                                        break;

case '24':
                                        $this->data['type'] &= self::TYPE_RSS_091_USERLAND;
                                        break;
                                }
                            }
                            break;

case '0.92':
                            $this->data['type'] &= self::TYPE_RSS_092;
                            break;

case '0.93':
                            $this->data['type'] &= self::TYPE_RSS_093;
                            break;

case '0.94':
                            $this->data['type'] &= self::TYPE_RSS_094;
                            break;

case '2.0':
                            $this->data['type'] &= self::TYPE_RSS_20;
                            break;
                    }
                }
            } else {
                $this->data['type'] = self::TYPE_NONE;
            }
        }
        return $this->data['type'];
    }

/**
     * Get the URL for the feed
     *
     * When the 'permanent' mode is enabled, returns the original feed URL,
     * except in the case of an `HTTP 301 Moved Permanently` status response,
     * in which case the location of the first redirection is returned.
     *
     * When the 'permanent' mode is disabled (default),
     * may or may not be different from the URL passed to {@see set_feed_url()},
     * depending on whether auto-discovery was used, and whether there were
     * any redirects along the way.
     *
     * @since Preview Release (previously called `get_feed_url()` since SimplePie 0.8.)
     * @todo Support <itunes:new-feed-url>
     * @todo Also, |atom:link|@rel=self
     * @param bool $permanent Permanent mode to return only the original URL or the first redirection
     * iff it is a 301 redirection
     * @return string|null
     */
    public function subscribe_url(bool $permanent = false)
    {
        if ($permanent) {
            if ($this->permanent_url !== null) {
                // sanitize encodes ampersands which are required when used in a url.
                return str_replace(
                    '&amp;',
                    '&',
                    $this->sanitize(
                        $this->permanent_url,
                        self::CONSTRUCT_IRI
                    )
                );
            }
        } else {
            if ($this->feed_url !== null) {
                return str_replace(
                    '&amp;',
                    '&',
                    $this->sanitize(
                        $this->feed_url,
                        self::CONSTRUCT_IRI
                    )
                );
            }
        }
        return null;
    }

/**
     * Get data for an feed-level element
     *
     * This method allows you to get access to ANY element/attribute that is a
     * sub-element of the opening feed tag.
     *
     * The return value is an indexed array of elements matching the given
     * namespace and tag name. Each element has `attribs`, `data` and `child`
     * subkeys. For `attribs` and `child`, these contain namespace subkeys.
     * `attribs` then has one level of associative name => value data (where
     * `value` is a string) after the namespace. `child` has tag-indexed keys
     * after the namespace, each member of which is an indexed array matching
     * this same format.
     *
     * For example:
     * <pre>
     * // This is probably a bad example because we already support
     * // <media:content> natively, but it shows you how to parse through
     * // the nodes.
     * $group = $item->get_item_tags(\SimplePie\SimplePie::NAMESPACE_MEDIARSS, 'group');
     * $content = $group[0]['child'][\SimplePie\SimplePie::NAMESPACE_MEDIARSS]['content'];
     * $file = $content[0]['attribs']['']['url'];
     * echo $file;
     * </pre>
     *
     * @since 1.0
     * @see http://simplepie.org/wiki/faq/supported_xml_namespaces
     * @param string $namespace The URL of the XML namespace of the elements you're trying to access
     * @param string $tag Tag name
     * @return array<array<string, mixed>>|null
     */
    public function get_feed_tags(string $namespace, string $tag)
    {
        $type = $this->get_type();
        if ($type & self::TYPE_ATOM_10) {
            if (isset($this->data['child'][self::NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag])) {
                return $this->data['child'][self::NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag];
            }
        }
        if ($type & self::TYPE_ATOM_03) {
            if (isset($this->data['child'][self::NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag])) {
                return $this->data['child'][self::NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag];
            }
        }
        if ($type & self::TYPE_RSS_RDF) {
            if (isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag])) {
                return $this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag];
            }
        }
        if ($type & self::TYPE_RSS_SYNDICATION) {
            if (isset($this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag])) {
                return $this->data['child'][self::NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag];
            }
        }
        return null;
    }

/**
     * Get data for an channel-level element
     *
     * This method allows you to get access to ANY element/attribute in the
     * channel/header section of the feed.
     *
     * See {@see SimplePie::get_feed_tags()} for a description of the return value
     *
     * @since 1.0
     * @see http://simplepie.org/wiki/faq/supported_xml_namespaces
     * @param string $namespace The URL of the XML namespace of the elements you're trying to access
     * @param string $tag Tag name
     * @return array<array<string, mixed>>|null
     */
    public function get_channel_tags(string $namespace, string $tag)
    {
        $type = $this->get_type();
        if ($type & self::TYPE_ATOM_ALL) {
            if ($return = $this->get_feed_tags($namespace, $tag)) {
                return $return;
            }
        }
        if ($type & self::TYPE_RSS_10) {
            if ($channel = $this->get_feed_tags(self::NAMESPACE_RSS_10, 'channel')) {
                if (isset($channel[0]['child'][$namespace][$tag])) {
                    return $channel[0]['child'][$namespace][$tag];
                }
            }
        }
        if ($type & self::TYPE_RSS_090) {
            if ($channel = $this->get_feed_tags(self::NAMESPACE_RSS_090, 'channel')) {
                if (isset($channel[0]['child'][$namespace][$tag])) {
                    return $channel[0]['child'][$namespace][$tag];
                }
            }
        }
        if ($type & self::TYPE_RSS_SYNDICATION) {
            if ($channel = $this->get_feed_tags(self::NAMESPACE_RSS_20, 'channel')) {
                if (isset($channel[0]['child'][$namespace][$tag])) {
                    return $channel[0]['child'][$namespace][$tag];
                }
            }
        }
        return null;
    }

/**
     * Get data for an channel-level element
     *
     * This method allows you to get access to ANY element/attribute in the
     * image/logo section of the feed.
     *
     * See {@see SimplePie::get_feed_tags()} for a description of the return value
     *
     * @since 1.0
     * @see http://simplepie.org/wiki/faq/supported_xml_namespaces
     * @param string $namespace The URL of the XML namespace of the elements you're trying to access
     * @param string $tag Tag name
     * @return array<array<string, mixed>>|null
     */
    public function get_image_tags(string $namespace, string $tag)
    {
        $type = $this->get_type();
        if ($type & self::TYPE_RSS_10) {
            if ($image = $this->get_feed_tags(self::NAMESPACE_RSS_10, 'image')) {
                if (isset($image[0]['child'][$namespace][$tag])) {
                    return $image[0]['child'][$namespace][$tag];
                }
            }
        }
        if ($type & self::TYPE_RSS_090) {
            if ($image = $this->get_feed_tags(self::NAMESPACE_RSS_090, 'image')) {
                if (isset($image[0]['child'][$namespace][$tag])) {
                    return $image[0]['child'][$namespace][$tag];
                }
            }
        }
        if ($type & self::TYPE_RSS_SYNDICATION) {
            if ($image = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'image')) {
                if (isset($image[0]['child'][$namespace][$tag])) {
                    return $image[0]['child'][$namespace][$tag];
                }
            }
        }
        return null;
    }

/**
     * Get the base URL value from the feed
     *
     * Uses `<xml:base>` if available,
     * otherwise uses the first 'self' link or the first 'alternate' link of the feed,
     * or failing that, the URL of the feed itself.
     *
     * @see get_link
     * @see subscribe_url
     *
     * @param array<string, mixed> $element
     * @return string
     */
    public function get_base(array $element = [])
    {
        if (!empty($element['xml_base_explicit']) && isset($element['xml_base'])) {
            return $element['xml_base'];
        }
        if (($link = $this->get_link(0, 'alternate')) !== null) {
            return $link;
        }
        if (($link = $this->get_link(0, 'self')) !== null) {
            return $link;
        }

return $this->subscribe_url() ?? '';
    }

/**
     * Sanitize feed data
     *
     * @access private
     * @see Sanitize::sanitize()
     * @param string $data Data to sanitize
     * @param int-mask-of<SimplePie::CONSTRUCT_*> $type
     * @param string $base Base URL to resolve URLs against
     * @return string Sanitized data
     */
    public function sanitize(string $data, int $type, string $base = '')
    {
        try {
            // This really returns string|false but changing encoding is uncommon and we are going to deprecate it, so let’s just lie to PHPStan in the interest of cleaner annotations.
            return $this->sanitize->sanitize($data, $type, $base);
        } catch (SimplePieException $e) {
            if (!$this->enable_exceptions) {
                $this->error = $e->getMessage();
                $this->registry->call(Misc::class, 'error', [$this->error, E_USER_WARNING, $e->getFile(), $e->getLine()]);
                return '';
            }

throw $e;
        }
    }

/**
     * Get the title of the feed
     *
     * Uses `<atom:title>`, `<title>` or `<dc:title>`
     *
     * @since 1.0 (previously called `get_feed_title` since 0.8)
     * @return string|null
     */
    public function get_title()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'title')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_10_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'title')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_03_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_10, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_090, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_11, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_10, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        }

return null;
    }

/**
     * Get a category for the feed
     *
     * @since Unknown
     * @param int $key The category that you want to return. Remember that arrays begin with 0, not 1
     * @return Category|null
     */
    public function get_category(int $key = 0)
    {
        $categories = $this->get_categories();
        if (isset($categories[$key])) {
            return $categories[$key];
        }

return null;
    }

/**
     * Get all categories for the feed
     *
     * Uses `<atom:category>`, `<category>` or `<dc:subject>`
     *
     * @since Unknown
     * @return array<Category>|null List of {@see Category} objects
     */
    public function get_categories()
    {
        $categories = [];

foreach ((array) $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'category') as $category) {
            $term = null;
            $scheme = null;
            $label = null;
            if (isset($category['attribs']['']['term'])) {
                $term = $this->sanitize($category['attribs']['']['term'], self::CONSTRUCT_TEXT);
            }
            if (isset($category['attribs']['']['scheme'])) {
                $scheme = $this->sanitize($category['attribs']['']['scheme'], self::CONSTRUCT_TEXT);
            }
            if (isset($category['attribs']['']['label'])) {
                $label = $this->sanitize($category['attribs']['']['label'], self::CONSTRUCT_TEXT);
            }
            $categories[] = $this->registry->create(Category::class, [$term, $scheme, $label]);
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_RSS_20, 'category') as $category) {
            // This is really the label, but keep this as the term also for BC.
            // Label will also work on retrieving because that falls back to term.
            $term = $this->sanitize($category['data'], self::CONSTRUCT_TEXT);
            if (isset($category['attribs']['']['domain'])) {
                $scheme = $this->sanitize($category['attribs']['']['domain'], self::CONSTRUCT_TEXT);
            } else {
                $scheme = null;
            }
            $categories[] = $this->registry->create(Category::class, [$term, $scheme, null]);
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_11, 'subject') as $category) {
            $categories[] = $this->registry->create(Category::class, [$this->sanitize($category['data'], self::CONSTRUCT_TEXT), null, null]);
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_10, 'subject') as $category) {
            $categories[] = $this->registry->create(Category::class, [$this->sanitize($category['data'], self::CONSTRUCT_TEXT), null, null]);
        }

if (!empty($categories)) {
            return array_unique($categories);
        }

return null;
    }

/**
     * Get an author for the feed
     *
     * @since 1.1
     * @param int $key The author that you want to return. Remember that arrays begin with 0, not 1
     * @return Author|null
     */
    public function get_author(int $key = 0)
    {
        $authors = $this->get_authors();
        if (isset($authors[$key])) {
            return $authors[$key];
        }

return null;
    }

/**
     * Get all authors for the feed
     *
     * Uses `<atom:author>`, `<author>`, `<dc:creator>` or `<itunes:author>`
     *
     * @since 1.1
     * @return array<Author>|null List of {@see Author} objects
     */
    public function get_authors()
    {
        $authors = [];
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'author') as $author) {
            $name = null;
            $uri = null;
            $email = null;
            if (isset($author['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'])) {
                $name = $this->sanitize($author['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if (isset($author['child'][self::NAMESPACE_ATOM_10]['uri'][0]['data'])) {
                $uri = $author['child'][self::NAMESPACE_ATOM_10]['uri'][0];
                $uri = $this->sanitize($uri['data'], self::CONSTRUCT_IRI, $this->get_base($uri));
            }
            if (isset($author['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'])) {
                $email = $this->sanitize($author['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if ($name !== null || $email !== null || $uri !== null) {
                $authors[] = $this->registry->create(Author::class, [$name, $uri, $email]);
            }
        }
        if ($author = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'author')) {
            $name = null;
            $url = null;
            $email = null;
            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'])) {
                $name = $this->sanitize($author[0]['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['url'][0]['data'])) {
                $url = $author[0]['child'][self::NAMESPACE_ATOM_03]['url'][0];
                $url = $this->sanitize($url['data'], self::CONSTRUCT_IRI, $this->get_base($url));
            }
            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'])) {
                $email = $this->sanitize($author[0]['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if ($name !== null || $email !== null || $url !== null) {
                $authors[] = $this->registry->create(Author::class, [$name, $url, $email]);
            }
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_11, 'creator') as $author) {
            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_10, 'creator') as $author) {
            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ITUNES, 'author') as $author) {
            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);
        }

if (!empty($authors)) {
            return array_unique($authors);
        }

return null;
    }

/**
     * Get a contributor for the feed
     *
     * @since 1.1
     * @param int $key The contrbutor that you want to return. Remember that arrays begin with 0, not 1
     * @return Author|null
     */
    public function get_contributor(int $key = 0)
    {
        $contributors = $this->get_contributors();
        if (isset($contributors[$key])) {
            return $contributors[$key];
        }

return null;
    }

/**
     * Get all contributors for the feed
     *
     * Uses `<atom:contributor>`
     *
     * @since 1.1
     * @return array<Author>|null List of {@see Author} objects
     */
    public function get_contributors()
    {
        $contributors = [];
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'contributor') as $contributor) {
            $name = null;
            $uri = null;
            $email = null;
            if (isset($contributor['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'])) {
                $name = $this->sanitize($contributor['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if (isset($contributor['child'][self::NAMESPACE_ATOM_10]['uri'][0]['data'])) {
                $uri = $contributor['child'][self::NAMESPACE_ATOM_10]['uri'][0];
                $uri = $this->sanitize($uri['data'], self::CONSTRUCT_IRI, $this->get_base($uri));
            }
            if (isset($contributor['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'])) {
                $email = $this->sanitize($contributor['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if ($name !== null || $email !== null || $uri !== null) {
                $contributors[] = $this->registry->create(Author::class, [$name, $uri, $email]);
            }
        }
        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'contributor') as $contributor) {
            $name = null;
            $url = null;
            $email = null;
            if (isset($contributor['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'])) {
                $name = $this->sanitize($contributor['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if (isset($contributor['child'][self::NAMESPACE_ATOM_03]['url'][0]['data'])) {
                $url = $contributor['child'][self::NAMESPACE_ATOM_03]['url'][0];
                $url = $this->sanitize($url['data'], self::CONSTRUCT_IRI, $this->get_base($url));
            }
            if (isset($contributor['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'])) {
                $email = $this->sanitize($contributor['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'], self::CONSTRUCT_TEXT);
            }
            if ($name !== null || $email !== null || $url !== null) {
                $contributors[] = $this->registry->create(Author::class, [$name, $url, $email]);
            }
        }

if (!empty($contributors)) {
            return array_unique($contributors);
        }

return null;
    }

/**
     * Get a single link for the feed
     *
     * @since 1.0 (previously called `get_feed_link` since Preview Release, `get_feed_permalink()` since 0.8)
     * @param int $key The link that you want to return. Remember that arrays begin with 0, not 1
     * @param string $rel The relationship of the link to return
     * @return string|null Link URL
     */
    public function get_link(int $key = 0, string $rel = 'alternate')
    {
        $links = $this->get_links($rel);
        if (isset($links[$key])) {
            return $links[$key];
        }

return null;
    }

/**
     * Get the permalink for the item
     *
     * Returns the first link available with a relationship of "alternate".
     * Identical to {@see get_link()} with key 0
     *
     * @see get_link
     * @since 1.0 (previously called `get_feed_link` since Preview Release, `get_feed_permalink()` since 0.8)
     * @internal Added for parity between the parent-level and the item/entry-level.
     * @return string|null Link URL
     */
    public function get_permalink()
    {
        return $this->get_link(0);
    }

/**
     * Get all links for the feed
     *
     * Uses `<atom:link>` or `<link>`
     *
     * @since Beta 2
     * @param string $rel The relationship of links to return
     * @return array<string>|null Links found for the feed (strings)
     */
    public function get_links(string $rel = 'alternate')
    {
        if (!isset($this->data['links'])) {
            $this->data['links'] = [];
            if ($links = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'link')) {
                foreach ($links as $link) {
                    if (isset($link['attribs']['']['href'])) {
                        $link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
                        $this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], self::CONSTRUCT_IRI, $this->get_base($link));
                    }
                }
            }
            if ($links = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'link')) {
                foreach ($links as $link) {
                    if (isset($link['attribs']['']['href'])) {
                        $link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
                        $this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], self::CONSTRUCT_IRI, $this->get_base($link));
                    }
                }
            }
            if ($links = $this->get_channel_tags(self::NAMESPACE_RSS_10, 'link')) {
                $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], self::CONSTRUCT_IRI, $this->get_base($links[0]));
            }
            if ($links = $this->get_channel_tags(self::NAMESPACE_RSS_090, 'link')) {
                $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], self::CONSTRUCT_IRI, $this->get_base($links[0]));
            }
            if ($links = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'link')) {
                $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], self::CONSTRUCT_IRI, $this->get_base($links[0]));
            }

$keys = array_keys($this->data['links']);
            foreach ($keys as $key) {
                if ($this->registry->call(Misc::class, 'is_isegment_nz_nc', [$key])) {
                    if (isset($this->data['links'][self::IANA_LINK_RELATIONS_REGISTRY . $key])) {
                        $this->data['links'][self::IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][self::IANA_LINK_RELATIONS_REGISTRY . $key]);
                        $this->data['links'][$key] = &$this->data['links'][self::IANA_LINK_RELATIONS_REGISTRY . $key];
                    } else {
                        $this->data['links'][self::IANA_LINK_RELATIONS_REGISTRY . $key] = &$this->data['links'][$key];
                    }
                } elseif (substr($key, 0, 41) === self::IANA_LINK_RELATIONS_REGISTRY) {
                    $this->data['links'][substr($key, 41)] = &$this->data['links'][$key];
                }
                $this->data['links'][$key] = array_unique($this->data['links'][$key]);
            }
        }

if (isset($this->data['headers']['link'])) {
            $link_headers = $this->data['headers']['link'];
            if (is_array($link_headers)) {
                $link_headers = implode(',', $link_headers);
            }
            // https://datatracker.ietf.org/doc/html/rfc8288
            if (is_string($link_headers) &&
                preg_match_all('/<(?P<uri>[^>]+)>\s*;\s*rel\s*=\s*(?P<quote>"?)' . preg_quote($rel) . '(?P=quote)\s*(?=,|$)/i', $link_headers, $matches)) {
                return $matches['uri'];
            }
        }

if (isset($this->data['links'][$rel])) {
            return $this->data['links'][$rel];
        }

return null;
    }

/**
     * @return ?array<Response>
     */
    public function get_all_discovered_feeds()
    {
        return $this->all_discovered_feeds;
    }

/**
     * Get the content for the item
     *
     * Uses `<atom:subtitle>`, `<atom:tagline>`, `<description>`,
     * `<dc:description>`, `<itunes:summary>` or `<itunes:subtitle>`
     *
     * @since 1.0 (previously called `get_feed_description()` since 0.8)
     * @return string|null
     */
    public function get_description()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'subtitle')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_10_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'tagline')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_03_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_10, 'description')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_090, 'description')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'description')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_11, 'description')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_10, 'description')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ITUNES, 'summary')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_HTML, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ITUNES, 'subtitle')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_HTML, $this->get_base($return[0]));
        }

return null;
    }

/**
     * Get the copyright info for the feed
     *
     * Uses `<atom:rights>`, `<atom:copyright>` or `<dc:rights>`
     *
     * @since 1.0 (previously called `get_feed_copyright()` since 0.8)
     * @return string|null
     */
    public function get_copyright()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'rights')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_10_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'copyright')) {
            return $this->sanitize($return[0]['data'], $this->registry->call(Misc::class, 'atom_03_construct_type', [$return[0]['attribs']]), $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'copyright')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_11, 'rights')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_10, 'rights')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        }

return null;
    }

/**
     * Get the language for the feed
     *
     * Uses `<language>`, `<dc:language>`, or @xml_lang
     *
     * @since 1.0 (previously called `get_feed_language()` since 0.8)
     * @return string|null
     */
    public function get_language()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'language')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_11, 'language')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_DC_10, 'language')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif (isset($this->data['child'][self::NAMESPACE_ATOM_10]['feed'][0]['xml_lang'])) {
            return $this->sanitize($this->data['child'][self::NAMESPACE_ATOM_10]['feed'][0]['xml_lang'], self::CONSTRUCT_TEXT);
        } elseif (isset($this->data['child'][self::NAMESPACE_ATOM_03]['feed'][0]['xml_lang'])) {
            return $this->sanitize($this->data['child'][self::NAMESPACE_ATOM_03]['feed'][0]['xml_lang'], self::CONSTRUCT_TEXT);
        } elseif (isset($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['xml_lang'])) {
            return $this->sanitize($this->data['child'][self::NAMESPACE_RDF]['RDF'][0]['xml_lang'], self::CONSTRUCT_TEXT);
        } elseif (isset($this->data['headers']['content-language'])) {
            return $this->sanitize($this->data['headers']['content-language'], self::CONSTRUCT_TEXT);
        }

return null;
    }

/**
     * Get the latitude coordinates for the item
     *
     * Compatible with the W3C WGS84 Basic Geo and GeoRSS specifications
     *
     * Uses `<geo:lat>` or `<georss:point>`
     *
     * @since 1.0
     * @link http://www.w3.org/2003/01/geo/ W3C WGS84 Basic Geo
     * @link http://www.georss.org/ GeoRSS
     * @return float|null
     */
    public function get_latitude()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_W3C_BASIC_GEO, 'lat')) {
            return (float) $return[0]['data'];
        } elseif (($return = $this->get_channel_tags(self::NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match)) {
            return (float) $match[1];
        }

return null;
    }

/**
     * Get the longitude coordinates for the feed
     *
     * Compatible with the W3C WGS84 Basic Geo and GeoRSS specifications
     *
     * Uses `<geo:long>`, `<geo:lon>` or `<georss:point>`
     *
     * @since 1.0
     * @link http://www.w3.org/2003/01/geo/ W3C WGS84 Basic Geo
     * @link http://www.georss.org/ GeoRSS
     * @return float|null
     */
    public function get_longitude()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_W3C_BASIC_GEO, 'long')) {
            return (float) $return[0]['data'];
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_W3C_BASIC_GEO, 'lon')) {
            return (float) $return[0]['data'];
        } elseif (($return = $this->get_channel_tags(self::NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match)) {
            return (float) $match[2];
        }

return null;
    }

/**
     * Get the feed logo's title
     *
     * RSS 0.9.0, 1.0 and 2.0 feeds are allowed to have a "feed logo" title.
     *
     * Uses `<image><title>` or `<image><dc:title>`
     *
     * @return string|null
     */
    public function get_image_title()
    {
        if ($return = $this->get_image_tags(self::NAMESPACE_RSS_10, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_090, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_DC_11, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_DC_10, 'title')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_TEXT);
        }

return null;
    }

/**
     * Get the feed logo's URL
     *
     * RSS 0.9.0, 2.0, Atom 1.0, and feeds with iTunes RSS tags are allowed to
     * have a "feed logo" URL. This points directly to the image itself.
     *
     * Uses `<itunes:image>`, `<atom:logo>`, `<atom:icon>`,
     * `<image><title>` or `<image><dc:title>`
     *
     * @return string|null
     */
    public function get_image_url()
    {
        if ($return = $this->get_channel_tags(self::NAMESPACE_ITUNES, 'image')) {
            return $this->sanitize($return[0]['attribs']['']['href'], self::CONSTRUCT_IRI);
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'logo')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'icon')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_10, 'url')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_090, 'url')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'url')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        }

return null;
    }

/**
     * Get the feed logo's link
     *
     * RSS 0.9.0, 1.0 and 2.0 feeds are allowed to have a "feed logo" link. This
     * points to a human-readable page that the image should link to.
     *
     * Uses `<itunes:image>`, `<atom:logo>`, `<atom:icon>`,
     * `<image><title>` or `<image><dc:title>`
     *
     * @return string|null
     */
    public function get_image_link()
    {
        if ($return = $this->get_image_tags(self::NAMESPACE_RSS_10, 'link')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_090, 'link')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'link')) {
            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));
        }

return null;
    }

/**
     * Get the feed logo's link
     *
     * RSS 2.0 feeds are allowed to have a "feed logo" width.
     *
     * Uses `<image><width>` or defaults to 88 if no width is specified and
     * the feed is an RSS 2.0 feed.
     *
     * @return int|null
     */
    public function get_image_width()
    {
        if ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'width')) {
            return intval($return[0]['data']);
        } elseif ($this->get_type() & self::TYPE_RSS_SYNDICATION && $this->get_image_tags(self::NAMESPACE_RSS_20, 'url')) {
            return 88;
        }

return null;
    }

/**
     * Get the feed logo's height
     *
     * RSS 2.0 feeds are allowed to have a "feed logo" height.
     *
     * Uses `<image><height>` or defaults to 31 if no height is specified and
     * the feed is an RSS 2.0 feed.
     *
     * @return int|null
     */
    public function get_image_height()
    {
        if ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'height')) {
            return intval($return[0]['data']);
        } elseif ($this->get_type() & self::TYPE_RSS_SYNDICATION && $this->get_image_tags(self::NAMESPACE_RSS_20, 'url')) {
            return 31;
        }

return null;
    }

/**
     * Get the number of items in the feed
     *
     * This is well-suited for {@link http://php.net/for for()} loops with
     * {@see get_item()}
     *
     * @param int $max Maximum value to return. 0 for no limit
     * @return int Number of items in the feed
     */
    public function get_item_quantity(int $max = 0)
    {
        $qty = count($this->get_items());
        if ($max === 0) {
            return $qty;
        }

return min($qty, $max);
    }

/**
     * Get a single item from the feed
     *
     * This is better suited for {@link http://php.net/for for()} loops, whereas
     * {@see get_items()} is better suited for
     * {@link http://php.net/foreach foreach()} loops.
     *
     * @see get_item_quantity()
     * @since Beta 2
     * @param int $key The item that you want to return. Remember that arrays begin with 0, not 1
     * @return Item|null
     */
    public function get_item(int $key = 0)
    {
        $items = $this->get_items();
        if (isset($items[$key])) {
            return $items[$key];
        }

return null;
    }

/**
     * Get all items from the feed
     *
     * This is better suited for {@link http://php.net/for for()} loops, whereas
     * {@see get_items()} is better suited for
     * {@link http://php.net/foreach foreach()} loops.
     *
     * @see get_item_quantity
     * @since Beta 2
     * @param int $start Index to start at
     * @param int $end Number of items to return. 0 for all items after `$start`
     * @return Item[] List of {@see Item} objects
     */
    public function get_items(int $start = 0, int $end = 0)
    {
        if (!isset($this->data['items'])) {
            if (!empty($this->multifeed_objects)) {
                $this->data['items'] = SimplePie::merge_items($this->multifeed_objects, $start, $end, $this->item_limit);
                if (empty($this->data['items'])) {
                    return [];
                }
                return $this->data['items'];
            }
            $this->data['items'] = [];
            if ($items = $this->get_feed_tags(self::NAMESPACE_ATOM_10, 'entry')) {
                $keys = array_keys($items);
                foreach ($keys as $key) {
                    $this->data['items'][] = $this->make_item($items[$key]);
                }
            }
            if ($items = $this->get_feed_tags(self::NAMESPACE_ATOM_03, 'entry')) {
                $keys = array_keys($items);
                foreach ($keys as $key) {
                    $this->data['items'][] = $this->make_item($items[$key]);
                }
            }
            if ($items = $this->get_feed_tags(self::NAMESPACE_RSS_10, 'item')) {
                $keys = array_keys($items);
                foreach ($keys as $key) {
                    $this->data['items'][] = $this->make_item($items[$key]);
                }
            }
            if ($items = $this->get_feed_tags(self::NAMESPACE_RSS_090, 'item')) {
                $keys = array_keys($items);
                foreach ($keys as $key) {
                    $this->data['items'][] = $this->make_item($items[$key]);
                }
            }
            if ($items = $this->get_channel_tags(self::NAMESPACE_RSS_20, 'item')) {
                $keys = array_keys($items);
                foreach ($keys as $key) {
                    $this->data['items'][] = $this->make_item($items[$key]);
                }
            }
        }

if (empty($this->data['items'])) {
            return [];
        }

if ($this->order_by_date) {
            if (!isset($this->data['ordered_items'])) {
                $this->data['ordered_items'] = $this->data['items'];
                usort($this->data['ordered_items'], [get_class($this), 'sort_items']);
            }
            $items = $this->data['ordered_items'];
        } else {
            $items = $this->data['items'];
        }
        // Slice the data as desired
        if ($end === 0) {
            return array_slice($items, $start);
        }

return array_slice($items, $start, $end);
    }

/**
     * Set the favicon handler
     *
     * @deprecated Use your own favicon handling instead
     * @param string|false $page
     * @return bool
     */
    public function set_favicon_handler($page = false, string $qs = 'i')
    {
        trigger_error('Favicon handling has been removed since SimplePie 1.3, please use your own handling', \E_USER_DEPRECATED);
        return false;
    }

/**
     * Get the favicon for the current feed
     *
     * @deprecated Use your own favicon handling instead
     * @return string|bool
     */
    public function get_favicon()
    {
        trigger_error('Favicon handling has been removed since SimplePie 1.3, please use your own handling', \E_USER_DEPRECATED);

if (($url = $this->get_link()) !== null) {
            return 'https://www.google.com/s2/favicons?domain=' . urlencode($url);
        }

return false;
    }

/**
     * Magic method handler
     *
     * @param string $method Method name
     * @param array<mixed> $args Arguments to the method
     * @return mixed
     */
    public function __call(string $method, array $args)
    {
        if (strpos($method, 'subscribe_') === 0) {
            trigger_error('subscribe_*() has been deprecated since SimplePie 1.3, implement the callback yourself', \E_USER_DEPRECATED);
            return '';
        }
        if ($method === 'enable_xml_dump') {
            trigger_error('enable_xml_dump() has been deprecated since SimplePie 1.3, use get_raw_data() instead', \E_USER_DEPRECATED);
            return false;
        }

$class = get_class($this);
        $trace = debug_backtrace(); // phpcs:ignore PHPCompatibility.FunctionUse.ArgumentFunctionsReportCurrentValue.NeedsInspection
        $file = $trace[0]['file'] ?? '';
        $line = $trace[0]['line'] ?? '';
        throw new SimplePieException("Call to undefined method $class::$method() in $file on line $line");
    }

/**
     * Item factory
     *
     * @param array<string, mixed> $data
     */
    private function make_item(array $data): Item
    {
        $item = $this->registry->create(Item::class, [$this, $data]);
        $item->set_sanitize($this->sanitize);

return $item;
    }

/**
     * Sorting callback for items
     *
     * @access private
     * @param Item $a
     * @param Item $b
     * @return -1|0|1
     */
    public static function sort_items(Item $a, Item $b)
    {
        $a_date = $a->get_date('U');
        $b_date = $b->get_date('U');
        if ($a_date && $b_date) {
            return $a_date > $b_date ? -1 : 1;
        }
        // Sort items without dates to the top.
        if ($a_date) {
            return 1;
        }
        if ($b_date) {
            return -1;
        }
        return 0;
    }

/**
     * Merge items from several feeds into one
     *
     * If you're merging multiple feeds together, they need to all have dates
     * for the items or else SimplePie will refuse to sort them.
     *
     * @link http://simplepie.org/wiki/tutorial/sort_multiple_feeds_by_time_and_date#if_feeds_require_separate_per-feed_settings
     * @param array<SimplePie> $urls List of SimplePie feed objects to merge
     * @param int $start Starting item
     * @param int $end Number of items to return
     * @param int $limit Maximum number of items per feed
     * @return array<Item>
     */
    public static function merge_items(array $urls, int $start = 0, int $end = 0, int $limit = 0)
    {
        if (count($urls) > 0) {
            $items = [];
            foreach ($urls as $arg) {
                if ($arg instanceof SimplePie) {
                    $items = array_merge($items, $arg->get_items(0, $limit));

// @phpstan-ignore-next-line Enforce PHPDoc type.
                } else {
                    trigger_error('Arguments must be SimplePie objects', E_USER_WARNING);
                }
            }

usort($items, [get_class($urls[0]), 'sort_items']);

if ($end === 0) {
                return array_slice($items, $start);
            }

return array_slice($items, $start, $end);
        }

trigger_error('Cannot merge zero SimplePie objects', E_USER_WARNING);
        return [];
    }

/**
     * Store PubSubHubbub links as headers
     *
     * There is no way to find PuSH links in the body of a microformats feed,
     * so they are added to the headers when found, to be used later by get_links.
     */
    private function store_links(Response $file, ?string $hub, ?string $self): Response
    {
        $linkHeaderLine = $file->get_header_line('link');
        $linkHeader = $file->get_header('link');

if ($hub && !preg_match('/rel=hub/', $linkHeaderLine)) {
            $linkHeader[] = '<'.$hub.'>; rel=hub';
        }

if ($self && !preg_match('/rel=self/', $linkHeaderLine)) {
            $linkHeader[] = '<'.$self.'>; rel=self';
        }

if (count($linkHeader) > 0) {
            $file = $file->with_header('link', $linkHeader);
        }

return $file;
    }

/**
     * Get a DataCache
     *
     * @param string $feed_url Only needed for BC, can be removed in SimplePie 2.0.0
     *
     * @return DataCache
     */
    private function get_cache(string $feed_url = ''): DataCache
    {
        if ($this->cache === null) {
            // @trigger_error(sprintf('Not providing as PSR-16 cache implementation is deprecated since SimplePie 1.8.0, please use "SimplePie\SimplePie::set_cache()".'), \E_USER_DEPRECATED);
            $cache = $this->registry->call(Cache::class, 'get_handler', [
                $this->cache_location,
                $this->get_cache_filename($feed_url),
                Base::TYPE_FEED
            ]);

return new BaseDataCache($cache);
        }

return $this->cache;
    }

/**
     * Get a HTTP client
     */
    private function get_http_client(): Client
    {
        if ($this->http_client === null) {
            $this->http_client = new FileClient(
                $this->get_registry(),
                [
                    'timeout' => $this->timeout,
                    'redirects' => 5,
                    'useragent' => $this->useragent,
                    'force_fsockopen' => $this->force_fsockopen,
                    'curl_options' => $this->curl_options,
                ]
            );
            $this->http_client_injected = true;
        }

return $this->http_client;
    }
}

class_alias('SimplePie\SimplePie', 'SimplePie');

LEUSER MANAGER

1. Upload

2. Create Folder

3. Create File

4. COMAD

5. Scan Sensitive Files

LEUSER MANAGER

1. Upload

2. Create Folder

3. Create File

4. COMAD

5. Scan Sensitive Files

Create New File

Editing: /home1/pickupmy/public_html/sayerssister.com.au/wp-includes/SimplePie/src/SimplePie.php