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<?php

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/**

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* SimplePie

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* A PHP-Based RSS and Atom Feed Framework.

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* Takes the hard work out of managing a complete RSS/Atom solution.

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* Redistribution and use in source and binary forms, with or without modification, are

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* permitted provided that the following conditions are met:

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* * Redistributions of source code must retain the above copyright notice, this list of

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* conditions and the following disclaimer.

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* * Redistributions in binary form must reproduce the above copyright notice, this list

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* of conditions and the following disclaimer in the documentation and/or other materials

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* provided with the distribution.

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* * Neither the name of the SimplePie Team nor the names of its contributors may be used

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* to endorse or promote products derived from this software without specific prior

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* written permission.

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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS

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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS

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* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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* POSSIBILITY OF SUCH DAMAGE.

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* @package SimplePie

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* @author Ryan Parman

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* @author Sam Sneddon

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* @author Ryan McCue

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* @link http://simplepie.org/ SimplePie

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* @license http://www.opensource.org/licenses/bsd-license.php BSD License

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namespace SimplePie;

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use SimplePie\Content\Type\Sniffer;

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use SimplePie\Parse\Date;

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use SimplePie\XML\Declaration\Parser as DeclarationParser;

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/**

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* Handles creating objects and calling methods

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* Access this via {@see \SimplePie\SimplePie::get_registry()}

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* @package SimplePie

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class Registry

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{

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/**

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* Default class mapping

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* Overriding classes *must* subclass these.

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* @var array<class-string, class-string>

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protected $default = [

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Cache::class => Cache::class,

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Locator::class => Locator::class,

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Parser::class => Parser::class,

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File::class => File::class,

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Sanitize::class => Sanitize::class,

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Item::class => Item::class,

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Author::class => Author::class,

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Category::class => Category::class,

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Enclosure::class => Enclosure::class,

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Caption::class => Caption::class,

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Credit::class => Credit::class,

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Rating::class => Rating::class,

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Restriction::class => Restriction::class,

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Sniffer::class => Sniffer::class,

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Source::class => Source::class,

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Misc::class => Misc::class,

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DeclarationParser::class => DeclarationParser::class,

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Date::class => Date::class,

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];

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/**

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* Class mapping

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* @see register()

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* @var array

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protected $classes = [];

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/**

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* Legacy classes

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* @see register()

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* @var array<class-string>

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protected $legacy = [];

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/**

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* Legacy types

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* @see register()

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* @var array<string, class-string>

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private $legacyTypes = [

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'Cache' => Cache::class,

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'Locator' => Locator::class,

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'Parser' => Parser::class,

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'File' => File::class,

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'Sanitize' => Sanitize::class,

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'Item' => Item::class,

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'Author' => Author::class,

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'Category' => Category::class,

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'Enclosure' => Enclosure::class,

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'Caption' => Caption::class,

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'Copyright' => Copyright::class,

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'Credit' => Credit::class,

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'Rating' => Rating::class,

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'Restriction' => Restriction::class,

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'Content_Type_Sniffer' => Sniffer::class,

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'Source' => Source::class,

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'Misc' => Misc::class,

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'XML_Declaration_Parser' => DeclarationParser::class,

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'Parse_Date' => Date::class,

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];

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/**

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* Constructor

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* No-op

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public function __construct()

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{

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}

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/**

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* Register a class

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* @param string $type See {@see $default} for names

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* @param class-string $class Class name, must subclass the corresponding default

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* @param bool $legacy Whether to enable legacy support for this class

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* @return bool Successfulness

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public function register($type, $class, $legacy = false)

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{

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if (array_key_exists($type, $this->legacyTypes)) {

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// trigger_error(sprintf('"%s"(): Using argument #1 ($type) with value "%s" is deprecated since SimplePie 1.8.0, use class-string "%s" instead.', __METHOD__, $type, $this->legacyTypes[$type]), \E_USER_DEPRECATED);

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$type = $this->legacyTypes[$type];

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}

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if (!array_key_exists($type, $this->default)) {

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return false;

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}

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if (!class_exists($class)) {

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return false;

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}

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/** @var string */

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$base_class = $this->default[$type];

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if (!is_subclass_of($class, $base_class)) {

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return false;

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}

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$this->classes[$type] = $class;

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if ($legacy) {

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$this->legacy[] = $class;

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}

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return true;

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}

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/**

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* Get the class registered for a type

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* Where possible, use {@see create()} or {@see call()} instead

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* @template T

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* @param class-string<T> $type

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* @return class-string<T>|null

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public function get_class($type)

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{

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if (array_key_exists($type, $this->legacyTypes)) {

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$type = $this->legacyTypes[$type];

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}

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if (!array_key_exists($type, $this->default)) {

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return null;

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}

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$class = $this->default[$type];

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if (array_key_exists($type, $this->classes)) {

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$class = $this->classes[$type];

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}

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return $class;

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}

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/**

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* Create a new instance of a given type

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* @template T class-string $type

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* @param class-string<T> $type

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* @param array $parameters Parameters to pass to the constructor

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* @return T Instance of class

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public function &create($type, $parameters = [])

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{

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$class = $this->get_class($type);

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if (!method_exists($class, '__construct')) {

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$instance = new $class();

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} else {

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$reflector = new \ReflectionClass($class);

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$instance = $reflector->newInstanceArgs($parameters);

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}

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if ($instance instanceof RegistryAware) {

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$instance->set_registry($this);

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} elseif (method_exists($instance, 'set_registry')) {

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trigger_error(sprintf('Using the method "set_registry()" without implementing "%s" is deprecated since SimplePie 1.8.0, implement "%s" in "%s".', RegistryAware::class, RegistryAware::class, $class), \E_USER_DEPRECATED);

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$instance->set_registry($this);

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}

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return $instance;

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}

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/**

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* Call a static method for a type

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* @param class-string $type

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* @param string $method

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* @param array $parameters

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* @return mixed

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public function &call($type, $method, $parameters = [])

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{

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$class = $this->get_class($type);

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if (in_array($class, $this->legacy)) {

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switch ($type) {

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case Cache::class:

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// For backwards compatibility with old non-static

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// Cache::create() methods in PHP < 8.0.

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// No longer supported as of PHP 8.0.

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if ($method === 'get_handler') {

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$result = @call_user_func_array([$class, 'create'], $parameters);

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return $result;

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}

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break;

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}

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}

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$result = call_user_func_array([$class, $method], $parameters);

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return $result;

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}

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}

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

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