<?php

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// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue

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// SPDX-License-Identifier: BSD-3-Clause

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declare(strict_types=1);

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namespace SimplePie;

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use InvalidArgumentException;

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use Psr\Http\Client\ClientInterface;

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use Psr\Http\Message\RequestFactoryInterface;

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use Psr\Http\Message\UriFactoryInterface;

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use Psr\SimpleCache\CacheInterface;

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use SimplePie\Cache\Base;

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use SimplePie\Cache\BaseDataCache;

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use SimplePie\Cache\CallableNameFilter;

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use SimplePie\Cache\DataCache;

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use SimplePie\Cache\NameFilter;

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use SimplePie\Cache\Psr16;

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use SimplePie\Content\Type\Sniffer;

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use SimplePie\Exception as SimplePieException;

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use SimplePie\HTTP\Client;

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use SimplePie\HTTP\ClientException;

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use SimplePie\HTTP\FileClient;

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use SimplePie\HTTP\Psr18Client;

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use SimplePie\HTTP\Response;

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/**

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* SimplePie

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*/

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class SimplePie

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{

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/**

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* SimplePie Name

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*/

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public const NAME = 'SimplePie';

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/**

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* SimplePie Version

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*/

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public const VERSION = '1.9.0';

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/**

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* SimplePie Website URL

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*/

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

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/**

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* SimplePie Linkback

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*/

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

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/**

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* No Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_NONE = 0;

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/**

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* Feed Link Element Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_AUTODISCOVERY = 1;

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/**

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* Local Feed Extension Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_LOCAL_EXTENSION = 2;

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/**

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* Local Feed Body Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_LOCAL_BODY = 4;

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/**

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* Remote Feed Extension Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_REMOTE_EXTENSION = 8;

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/**

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* Remote Feed Body Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_REMOTE_BODY = 16;

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/**

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* All Feed Autodiscovery

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* @see SimplePie::set_autodiscovery_level()

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*/

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public const LOCATOR_ALL = 31;

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/**

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* No known feed type

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*/

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public const TYPE_NONE = 0;

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/**

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* RSS 0.90

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*/

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public const TYPE_RSS_090 = 1;

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/**

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* RSS 0.91 (Netscape)

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*/

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public const TYPE_RSS_091_NETSCAPE = 2;

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/**

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* RSS 0.91 (Userland)

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*/

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public const TYPE_RSS_091_USERLAND = 4;

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/**

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* RSS 0.91 (both Netscape and Userland)

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*/

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public const TYPE_RSS_091 = 6;

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/**

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* RSS 0.92

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*/

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public const TYPE_RSS_092 = 8;

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/**

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* RSS 0.93

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*/

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public const TYPE_RSS_093 = 16;

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/**

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* RSS 0.94

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*/

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public const TYPE_RSS_094 = 32;

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/**

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* RSS 1.0

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*/

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public const TYPE_RSS_10 = 64;

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/**

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* RSS 2.0

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*/

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public const TYPE_RSS_20 = 128;

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/**

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* RDF-based RSS

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*/

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public const TYPE_RSS_RDF = 65;

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/**

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* Non-RDF-based RSS (truly intended as syndication format)

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*/

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public const TYPE_RSS_SYNDICATION = 190;

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/**

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* All RSS

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*/

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public const TYPE_RSS_ALL = 255;

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/**

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* Atom 0.3

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*/

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public const TYPE_ATOM_03 = 256;

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/**

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* Atom 1.0

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*/

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public const TYPE_ATOM_10 = 512;

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/**

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* All Atom

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*/

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public const TYPE_ATOM_ALL = 768;

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/**

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* All feed types

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*/

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public const TYPE_ALL = 1023;

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/**

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* No construct

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*/

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public const CONSTRUCT_NONE = 0;

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/**

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* Text construct

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*/

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public const CONSTRUCT_TEXT = 1;

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/**

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* HTML construct

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*/

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public const CONSTRUCT_HTML = 2;

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/**

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* XHTML construct

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*/

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public const CONSTRUCT_XHTML = 4;

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/**

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* base64-encoded construct

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*/

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public const CONSTRUCT_BASE64 = 8;

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/**

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* IRI construct

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*/

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public const CONSTRUCT_IRI = 16;

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/**

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* A construct that might be HTML

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*/

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public const CONSTRUCT_MAYBE_HTML = 32;

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/**

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* All constructs

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*/

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public const CONSTRUCT_ALL = 63;

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/**

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* Don't change case

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*/

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public const SAME_CASE = 1;

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/**

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* Change to lowercase

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*/

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public const LOWERCASE = 2;

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/**

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* Change to uppercase

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*/

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public const UPPERCASE = 4;

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/**

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* PCRE for HTML attributes

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*/

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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]*';

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/**

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* PCRE for XML attributes

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*/

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public const PCRE_XML_ATTRIBUTE = '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*';

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/**

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* XML Namespace

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*/

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

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/**

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* Atom 1.0 Namespace

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*/

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

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/**

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* Atom 0.3 Namespace

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*/

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public const NAMESPACE_ATOM_03 = 'http://purl.org/atom/ns#';

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/**

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* RDF Namespace

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*/

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

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/**

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* RSS 0.90 Namespace

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*/

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

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/**

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* RSS 1.0 Namespace

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*/

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

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/**

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* RSS 1.0 Content Module Namespace

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*/

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public const NAMESPACE_RSS_10_MODULES_CONTENT = 'http://purl.org/rss/1.0/modules/content/';

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/**

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* RSS 2.0 Namespace

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* (Stupid, I know, but I'm certain it will confuse people less with support.)

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*/

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public const NAMESPACE_RSS_20 = '';

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/**

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* DC 1.0 Namespace

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*/

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

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/**

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* DC 1.1 Namespace

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*/

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

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/**

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* W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace

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*/

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public const NAMESPACE_W3C_BASIC_GEO = 'http://www.w3.org/2003/01/geo/wgs84_pos#';

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/**

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* GeoRSS Namespace

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*/

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

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/**

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* Media RSS Namespace

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*/

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public const NAMESPACE_MEDIARSS = 'http://search.yahoo.com/mrss/';

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/**

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* Wrong Media RSS Namespace. Caused by a long-standing typo in the spec.

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*/

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public const NAMESPACE_MEDIARSS_WRONG = 'http://search.yahoo.com/mrss';

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/**

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* Wrong Media RSS Namespace #2. New namespace introduced in Media RSS 1.5.

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*/

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public const NAMESPACE_MEDIARSS_WRONG2 = 'http://video.search.yahoo.com/mrss';

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/**

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* Wrong Media RSS Namespace #3. A possible typo of the Media RSS 1.5 namespace.

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*/

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public const NAMESPACE_MEDIARSS_WRONG3 = 'http://video.search.yahoo.com/mrss/';

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/**

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* Wrong Media RSS Namespace #4. New spec location after the RSS Advisory Board takes it over, but not a valid namespace.

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*/

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public const NAMESPACE_MEDIARSS_WRONG4 = 'http://www.rssboard.org/media-rss';

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/**

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* Wrong Media RSS Namespace #5. A possible typo of the RSS Advisory Board URL.

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*/

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public const NAMESPACE_MEDIARSS_WRONG5 = 'http://www.rssboard.org/media-rss/';

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/**

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* iTunes RSS Namespace

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*/

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

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/**

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* XHTML Namespace

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*/

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

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/**

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* IANA Link Relations Registry

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*/

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public const IANA_LINK_RELATIONS_REGISTRY = 'http://www.iana.org/assignments/relation/';

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/**

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* No file source

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*/

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public const FILE_SOURCE_NONE = 0;

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/**

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* Remote file source

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*/

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public const FILE_SOURCE_REMOTE = 1;

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/**

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* Local file source

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*/

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public const FILE_SOURCE_LOCAL = 2;

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/**

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* fsockopen() file source

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*/

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public const FILE_SOURCE_FSOCKOPEN = 4;

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/**

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* cURL file source

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*/

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public const FILE_SOURCE_CURL = 8;

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/**

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* file_get_contents() file source

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*/

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public const FILE_SOURCE_FILE_GET_CONTENTS = 16;

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/**

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* @internal Default value of the HTTP Accept header when fetching/locating feeds

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*/

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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';

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/**

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* @var array<string, mixed> Raw data

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* @access private

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*/

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public $data = [];

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/**

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* @var string|string[]|null Error string (or array when multiple feeds are initialized)

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* @access private

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*/

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public $error = null;

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/**

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* @var int HTTP status code

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* @see SimplePie::status_code()

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* @access private

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*/

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public $status_code = 0;

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/**

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* @var Sanitize instance of Sanitize class

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* @see SimplePie::set_sanitize_class()

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* @access private

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*/

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public $sanitize;

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/**

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* @var string SimplePie Useragent

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* @see SimplePie::set_useragent()

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* @access private

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*/

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public $useragent = '';

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/**

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* @var string Feed URL

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* @see SimplePie::set_feed_url()

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* @access private

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*/

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public $feed_url;

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/**

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* @var ?string Original feed URL, or new feed URL iff HTTP 301 Moved Permanently

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* @see SimplePie::subscribe_url()

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* @access private

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*/

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public $permanent_url = null;

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/**

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* @var File Instance of File class to use as a feed

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* @see SimplePie::set_file()

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*/

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private $file;

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/**

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* @var string|false Raw feed data

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* @see SimplePie::set_raw_data()

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* @access private

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*/

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public $raw_data;

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/**

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* @var int Timeout for fetching remote files

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* @see SimplePie::set_timeout()

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* @access private

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*/

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public $timeout = 10;

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/**

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* @var array<int, mixed> Custom curl options

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* @see SimplePie::set_curl_options()

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* @access private

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*/

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public $curl_options = [];

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/**

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* @var bool Forces fsockopen() to be used for remote files instead

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* of cURL, even if a new enough version is installed

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* @see SimplePie::force_fsockopen()

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* @access private

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*/

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public $force_fsockopen = false;

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/**

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* @var bool Force the given data/URL to be treated as a feed no matter what

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* it appears like

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* @see SimplePie::force_feed()

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* @access private

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*/

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public $force_feed = false;

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/**

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* @var bool Enable/Disable Caching

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* @see SimplePie::enable_cache()

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* @access private

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*/

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private $enable_cache = true;

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/**

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* @var DataCache|null

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* @see SimplePie::set_cache()

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*/

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private $cache = null;

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/**

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* @var NameFilter

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* @see SimplePie::set_cache_namefilter()

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*/

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private $cache_namefilter;

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/**

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* @var bool Force SimplePie to fallback to expired cache, if enabled,

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* when feed is unavailable.

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* @see SimplePie::force_cache_fallback()

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* @access private

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