(PECL gearman >= 0.5.0) Set worker options

(PECL varnish >= 0.6) Get next log line public

(PECL memcache >= 0.2.0) Store data at the server

(PHP 4 >= 4.0.6, PHP 5 <= 5.0.5) Returns the error code of the previous operation

(PECL svn >= 0.1.0) Returns the version of the SVN client libraries

(PECL gearman >= 0.5.0) Set a callback for worker warnings

(PECL zmq >= 1.0.4) Get context option public

(PHP 5 >= 5.5.0, PHP 7) Return string describing error code

(PECL memcached >= 2.0.0) Increment numeric item's value, stored on a specific server

(PHP 5 <= 5.0.5) Monitor a collection of files in a directory for changes