(PHP 4, PHP 5, PHP 7) Gets the current PHP version

(PHP 5, PHP 7 >= 5.5.0, PHP 7) Sets the process title

(PECL apc >= 3.1.1) Increase a stored number

(PECL apc >= 3.0.0) Cache a variable in the data store

(PECL apc >= 3.1.1) Constructs an APCIterator iterator object

(PECL runkit >= 0.7.0) Copies a method from class to another

(PHP 4, PHP 5) Sets the current active configuration setting of magic_quotes_runtime

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Gets the current include_path configuration option

(PECL apcu >= 5.0.0) Get total cache hits

(PECL apc >= 2.0.0) Clears the APC cache