Cache

60class Cache61{62    /**63     * Cache handler classes64     *65     * These receive 3 parameters to their constructor, as documented in66     * {@see register()}67     * @var array68     */69    protected static $handlers = [70        'mysql'     => 'SimplePie\Cache\MySQL',71        'memcache'  => 'SimplePie\Cache\Memcache',72        'memcached' => 'SimplePie\Cache\Memcached',73        'redis'     => 'SimplePie\Cache\Redis'74    ];75 76    /**77     * Don't call the constructor. Please.78     */79    private function __construct()80    {81    }82 83    /**84     * Create a new SimplePie\Cache object85     *86     * @param string $location URL location (scheme is used to determine handler)87     * @param string $filename Unique identifier for cache object88     * @param Base::TYPE_FEED|Base::TYPE_IMAGE $extension 'spi' or 'spc'89     * @return Base Type of object depends on scheme of `$location`90     */91    public static function get_handler($location, $filename, $extension)92    {93        $type = explode(':', $location, 2);94        $type = $type[0];95        if (!empty(self::$handlers[$type])) {96            $class = self::$handlers[$type];97            return new $class($location, $filename, $extension);98        }99 100        return new \SimplePie\Cache\File($location, $filename, $extension);101    }102 103    /**104     * Create a new SimplePie\Cache object105     *106     * @deprecated since SimplePie 1.3.1, use {@see get_handler()} instead107     */108    public function create($location, $filename, $extension)109    {110        trigger_error('Cache::create() has been replaced with Cache::get_handler() since SimplePie 1.3.1, use the registry system instead.', \E_USER_DEPRECATED);111 112        return self::get_handler($location, $filename, $extension);113    }114 115    /**116     * Register a handler117     *118     * @param string $type DSN type to register for119     * @param class-string<Base> $class Name of handler class. Must implement Base120     */121    public static function register($type, $class)122    {123        self::$handlers[$type] = $class;124    }125 126    /**127     * Parse a URL into an array128     *129     * @param string $url130     * @return array131     */132    public static function parse_URL($url)133    {134        $params = parse_url($url);135        $params['extras'] = [];136        if (isset($params['query'])) {137            parse_str($params['query'], $params['extras']);138        }139        return $params;