(PECL libevent >= 0.0.1) Destroy event base

(PECL eio = 1.0.0) (Re-)initialize Eio void

(PECL sync >= 1.0.0) Fires/sets the event

(PHP 4, PHP 5, PHP 7) Return the current process identifier

(PHP 5 >= 5.3.0, PHP 7) Waits for signals

(PECL eio >= 0.0.1dev) Synchronize a file's in-core state with storage device.

(PECL ev >= 0.2.0) Resume previously suspended default event loop

(PHP 4, PHP 5, PHP 7) Return info about a user by user id

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Set information in the message queue data structure

(PHP 4, PHP 5, PHP 7) Release a semaphore bool