View file File name : Cache.php Content :<?php /** * SimplePie * * A PHP-Based RSS and Atom Feed Framework. * Takes the hard work out of managing a complete RSS/Atom solution. * * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are * permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * * Neither the name of the SimplePie Team nor the names of its contributors may be used * to endorse or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * @package SimplePie * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue * @author Ryan Parman * @author Sam Sneddon * @author Ryan McCue * @link http://simplepie.org/ SimplePie * @license http://www.opensource.org/licenses/bsd-license.php BSD License */ /** * Used to create cache objects * * This class can be overloaded with {@see SimplePie::set_cache_class()}, * although the preferred way is to create your own handler * via {@see register()} * * @package SimplePie * @subpackage Caching */ class SimplePie_Cache { /** * Cache handler classes * * These receive 3 parameters to their constructor, as documented in * {@see register()} * @var array */ protected static $handlers = array( 'mysql' => 'SimplePie_Cache_MySQL', 'memcache' => 'SimplePie_Cache_Memcache', 'memcached' => 'SimplePie_Cache_Memcached', 'redis' => 'SimplePie_Cache_Redis' ); /** * Don't call the constructor. Please. */ private function __construct() { } /** * Create a new SimplePie_Cache object * * @param string $location URL location (scheme is used to determine handler) * @param string $filename Unique identifier for cache object * @param string $extension 'spi' or 'spc' * @return SimplePie_Cache_Base Type of object depends on scheme of `$location` */ public static function get_handler($location, $filename, $extension) { $type = explode(':', $location, 2); $type = $type[0]; if (!empty(self::$handlers[$type])) { $class = self::$handlers[$type]; return new $class($location, $filename, $extension); } return new SimplePie_Cache_File($location, $filename, $extension); } /** * Create a new SimplePie_Cache object * * @deprecated Use {@see get_handler} instead */ public function create($location, $filename, $extension) { trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED); return self::get_handler($location, $filename, $extension); } /** * Register a handler * * @param string $type DSN type to register for * @param string $class Name of handler class. Must implement SimplePie_Cache_Base */ public static function register($type, $class) { self::$handlers[$type] = $class; } /** * Parse a URL into an array * * @param string $url * @return array */ public static function parse_URL($url) { $params = parse_url($url); $params['extras'] = array(); if (isset($params['query'])) { parse_str($params['query'], $params['extras']); } return $params; } }