(PHP 5 >= 5.2.1, PHP 7) Returns directory path used for temporary files

(PECL apcu >= 5.0.0) Get total cache size

(PECL runkit >= 0.7.0) Convert a base class to an inherited class, add ancestral methods when appropriate

(PECL wincache >= 1.1.0) Retrieves information about session cache memory usage

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Gets all configuration options

(PECL runkit >= 0.7.0) Dynamically removes the given method

(PECL runkit >= 0.8.0) Determines if the current functions return value will be used

Dummy for main() There is no function named

(PECL wincache >= 1.1.0) Increments the value associated with the key

(PECL weakref >= 0.2.0) Checks whether a certain object is in the map