(PECL event >= 1.2.6-beta) Loads a hosts file (in the same format as /etc/hosts) from hosts file

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

(PHP 4 >= 4.2.0, PHP 5 < 5.3.0, PECL ncurses >= 1.0.0) Sets mouse options

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

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Select a FrontBase database

(PECL v8js >= 0.1.0) Execute a string as Javascript code

(PECL apd 0.2-0.4) Throw an error, a callstack and then exit

(PHP 4, PHP 5, PHP 7) Rollback a transaction

(PHP 5 <= 5.3.0, PECL ming SVN) Sets the text field alignment

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Fetch all HTTP response headers