(PECL apc >= 2.0.0) Retrieves cached information from APC's data store array apc_cache_info ([ string $cache_type = "" [, bool $limited = false ]] ) Retrieves cached information and meta-data from APC's data store. Parameters: cache_type If cache_type is "user", information about the user cache will be returned. If cache_type is "filehits", information about whic

(PECL apc >= 3.1.1) Updates an old value with a new value bool apc_cas ( string $key, int $old, int $new ) apc_cas() updates an already existing integer value if the old parameter matches the currently stored value with the value of the new parameter. Parameters: key The key of the value being updated. old The old value (the value cu

(PECL apc >= 2.0.0) Clears the APC cache bool apc_clear_cache ([ string $cache_type = "" ] ) Clears the user/system cache. Parameters: cache_type If cache_type is "user", the user cache will be cleared; otherwise, the system cache (cached files) will be cleared. Returns: Returns TRUE always

(PECL apc >= 3.0.13) Stores a file in the bytecode cache, bypassing all filters. mixed apc_compile_file ( string $filename [, bool $atomic = true ] ) Stores a file in the bytecode cache, bypassing all filters. Parameters: filename Full or relative path to a PHP file that will be compiled and stored in the bytecode cache. Returns: Returns TR

(PECL apc >= 3.1.1) Decrease a stored number int apc_dec ( string $key [, int $step = 1 [, bool &$success ]] ) Decreases a stored integer value. Parameters: key The key of the value being decreased. step The step, or value to decrease. success Optionally pass the success or fail boolean value

(PECL apc >= 3.0.0) Defines a set of constants for retrieval and mass-definition bool apc_define_constants ( string $key, array $constants [, bool $case_sensitive = true ] ) define() is notoriously slow. Since the main benefit of APC is to increase the performance of scripts/applications, this mechanism is provided to streamline the process of mass constant definition. However, this function does not perform as well as

(PECL apc >= 3.1.1) Deletes files from the opcode cache mixed apc_delete_file ( mixed $keys ) Deletes the given files from the opcode cache. Parameters: keys The files to be deleted. Accepts a string, array of strings, or an APCIterator object. Returns: Returns TRUE on success or FALSE on failure. Or if keys is an array, then an empty array is

(PECL apc >= 3.0.0) Removes a stored variable from the cache mixed apc_delete ( string $key ) Removes a stored variable from the cache. Parameters: key The key used to store the value (with apc_store()). Returns: Returns TRUE on success or FALSE on failure. Examples: A apc_delete

(PECL apc >= 3.1.4) Checks if APC key exists mixed apc_exists ( mixed $keys ) Checks if one or more APC keys exist. Parameters: keys A string, or an array of strings, that contain keys. Returns: Returns TRUE if the key exists, otherwise FALSE Or if an array was passed to keys, then an array is returned that contains all existing keys, or an em

(PECL apc >= 3.0.0) Fetch a stored variable from the cache mixed apc_fetch ( mixed $key [, bool &$success ] ) Fetchs a stored variable from the cache. Parameters: key The key used to store the value (with apc_store()). If an array is passed then each element is fetched and returned. success Set to TRUE in success and FALSE in f