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

(PECL libevent >= 0.0.1) Assign a priority to a buffered event

(PECL ev >= 0.2.0) Establishes the current time by querying the kernel, updating the time returned by EvLoop::now

(PECL libevent >= 0.0.1) Write data to a buffered event

(PECL ev >= 0.2.0) Create stopped EvSignal watcher object

(PECL ev >= 0.2.0) Creates EvSignal watcher object associated with the current event loop instance

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

(PHP 4, PHP 5, PHP 7) Get process times array

(PECL pthreads >= 2.0.0) Synchronization public

(PECL eio >= 0.0.1dev) Write to file resource