Brian Allen Authentic Jersey roup ) ) return false; unset( $this->cache[$group][$key] ); return true; } /** * Clears the object cache of all data. * * @since 2.0.0 * * @return true Always returns true. */ public function flush() { $this->cache = array(); return true; } /** * Retrieves the cache contents, if it exists. * * The contents will be first attempted to be retrieved by searching by the * key in the cache group. If the cache is hit (success) then the contents * are returned. * * On failure, the number of cache misses will be incremented. * * @since 2.0.0 * * @param int|string $key What the contents in the cache are called. * @param string $group Optional. Where the cache contents are grouped. Default 'default'. * @param string $force Optional. Unused. Whether to force a refetch rather than relying on the local * cache. Default false. * @param bool $found Optional. Whether the key was found in the cache (passed by reference). * Disambiguates a return of false, a storable value. Default null. * @return false|mixed False on failure to retrieve contents or the cache contents on success. */ public function get( $key, $group = 'default', $force = false, &$found = null ) { if ( empty( $group ) ) $group = 'default'; if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) $key = $this->blog_prefix . $key; if ( $this->_exists( $key, $group ) ) { $found = true; $this->cache_hits += 1; if ( is_object($this->cache[$group][$key]) ) return clone $this->cache[$group][$key]; else return $this->cache[$group][$key]; } $found = false; $this->cache_misses += 1; return false; } /** * Increments numeric cache item's value. * * @since 3.3.0 * * @param int|string $key The cache key to increment * @param int $offset Optional. The amount by which to increment the item's value. Default 1. * @param string $group Optional. The group the key is in. Default 'default'. * @return false|int False on failure, the item's new value on success. */ public function incr( $key, $offset = 1, $group = 'default' ) { if ( empty( $group ) ) $group = 'default'; if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) $key = $this->blog_prefix . $key; if ( ! $this->_exists( $key, $group ) ) return false; if ( ! is_numeric( $this->cache[ $group ][ $key ] ) ) $this->cache[ $group ][ $key ] = 0; $offset = (int) $offset; $this->cache[ $group ][ $key ] += $offset; if ( $this->cache[ $group ][ $key ] < 0 ) $this->cache[ $group ][ $key ] = 0; return $this->cache[ $group ][ $key ]; } /** * Replaces the contents in the cache, if contents already exist. * * @since 2.0.0 * * @see WP_Object_Cache::set() * * @param int|string $key What to call the contents in the cache. * @param mixed $data The contents to store in the cache. * @param string $group Optional. Where to group the cache contents. Default 'default'. * @param int $expire Optional. When to expire the cache contents. Default 0 (no expiration). * @return bool False if not exists, true if contents were replaced. */ public function replace( $key, $data, $group = 'default', $expire = 0 ) { if ( empty( $group ) ) $group = 'default'; $id = $key; if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) $id = $this->blog_prefix . $key; if ( ! $this->_exists( $id, $group ) ) return false; return $this->set( $key, $data, $group, (int) $expire ); } /** * Resets cache keys. * * @since 3.0.0 * * @deprecated 3.5.0 Use switch_to_blog() * @see switch_to_blog() */ public function reset() { _deprecated_function( __FUNCTION__, '3.5.0', 'switch_to_blog()' ); // Clear out non-global caches since the blog ID has changed. foreach ( array_keys( $this->cache ) as $group ) { if ( ! isset( $this->global_groups[ $group ] ) ) unset( $this->cache[ $group ] ); } } /** * Sets the data contents into the cache. * * The cache contents is grouped by the $group parameter followed by the * $key. This allows for duplicate ids in unique groups. Therefore, naming of * the group should be used with care and should follow normal function * naming guidelines outside of core WordPress usage. * * The $expire parameter is not used, because the cache will automatically * expire for each time a page is accessed and PHP finishes. The method is * more for cache plugins which use files. * * @since 2.0.0 * * @param int|string $key What to call the contents in the cache. * @param mixed $data The contents to store in the cache. * @param string $group Optional. Where to group the cache contents. Default 'default'. * @param int $expire Not Used. * @return true Always returns true. */ public function set( $key, $data, $group = 'default', $expire = 0 ) { if ( empty( $group ) ) $group = 'default'; if ( $this->multisite && ! isset( $this->global_groups[ $group ] ) ) $key = $this->blog_prefix . $key; if ( is_object( $data ) ) $data = clone $data; $this->cache[$group][$key] = $data; return true; } /** * Echoes the stats of the caching. * * Gives the cache hits, and cache misses. Also prints every cached group, * key and the data. * * @since 2.0.0 */ public function stats() { echo "

"; echo "Cache Hits: {$this->cache_hits}
"; echo "Cache Misses: {$this->cache_misses}
"; echo "

"; echo ''; } /** * Switches the internal blog ID. * * This changes the blog ID used to create keys in blog specific groups. * * @since 3.5.0 * * @param int $blog_id Blog ID. */ public function switch_to_blog( $blog_id ) { $blog_id = (int) $blog_id; $this->blog_prefix = $this->multisite ? $blog_id . ':' : ''; } /** * Serves as a utility function to determine whether a key exists in the cache. * * @since 3.4.0 * * @param int|string $key Cache key to check for existence. * @param string $group Cache group for the key existence check. * @return bool Whether the key exists in the cache for the given group. */ protected function _exists( $key, $group ) { return isset( $this->cache[ $group ] ) && ( isset( $this->cache[ $group ][ $key ] ) || array_key_exists( $key, $this->cache[ $group ] ) ); } /** * Sets up object properties; PHP 5 style constructor. * * @since 2.0.8 */ public function __construct() { $this->multisite = is_multisite(); $this->blog_prefix = $this->multisite ? get_current_blog_id() . ':' : ''; /** * @todo This should be moved to the PHP4 style constructor, PHP5 * already calls __destruct() */ register_shutdown_function( array( $this, '__destruct' ) ); } /** * Saves the object cache before object is completely destroyed. * * Called upon object destruction, which should be when PHP ends. * * @since 2.0.8 * * @return true Always returns true. */ public function __destruct() { return true; } }