(PECL fann >= 1.0.0) Sets where the errors are logged to

(PECL event >= 1.2.6-beta) Sets number of priorities per event base

(PECL ev >= 0.2.0) Returns the current time in fractional seconds since the epoch.

(PHP 5, PHP 7) Modify a user to a security database

(PECL mongo >= 1.0.11) Gets the incremented value to create this id

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Convert character encoding

(PHP 5 >= 5.3.0, PHP 7) Peeks at the node from the top of the queue

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Creates a pair of indistinguishable sockets and stores them in an array

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Create a number formatter

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Receives data from a connected socket