(PECL gupnp >= 0.1.0) Check whether subscription is valid to the service

(PECL event >= 1.2.6-beta) Acquires a lock on buffer

(PECL gearman >= 0.5.0) Set callback for job failure

(PECL zmq >= 0.5.0) Create a new socket public

(PHP 4, PHP 5 < 5.2.0, PECL hwapi SVN) Returns type of reason

(PHP 5 <= 5.0.5) Get next pending FAM event

(PHP 4, PHP 5 < 5.2.0, PECL hwapi SVN) Returns key of the attribute

(PECL event >= 1.4.0-beta) Returns associative array of the input headers

(PHP 4, PHP 5 < 5.2.0, PECL hwapi SVN) Inserts a new object

(PECL zmq >= 0.8.0) Receives a multipart message