(PHP 4, PHP 5 < 5.2.0, PECL hwapi SVN) Checks out an object

(PECL event >= 1.2.6-beta) Releases lock acquired by EventBuffer::lock

(PECL event >= 1.7.0) Returns numeric file descriptor of a socket, or stream

(PECL svm >= 0.1.0) Save a model to a file

(PHP 4, PHP 5, PHP 7) Returns the current directory name

(PECL event >= 1.2.6-beta) Moves all data from source buffer to the front of current buffer

(PECL sam >= 0.2.0) Read one or more messages from a queue without removing it from the queue.

(PECL event >= 1.2.6-beta) The abstract constructor

(PHP 4 >= 4.0.1, PECL yaz >= 0.9.0) Returns error description

(PECL memcache >= 0.2.0) Decrement item's value