(PHP 7) Returns active resources array get_resources

(PHP 4, PHP 5, PHP 7) Gets PHP's process ID int

(PHP 4, PHP 5, PHP 7) Gets the current resource usages

(PHP 4, PHP < 5.5) Gets the Zend guid string

(PHP 4 >= 4.3.2, PHP 5, PHP 7) Returns the amount of memory allocated to PHP

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

(PHP 4, PHP 5, PHP 7) Gets the value of a configuration option

(PHP 4, PHP 5, PHP 7) Gets PHP script owner's UID

(PHP 5 >= 5.3.0, PHP 7) Returns status of the circular reference collector

(PHP 5 >= 5.3.0, PHP 7) Forces collection of any existing garbage cycles