(PECL event >= 1.2.6-beta) Checks if the event loop was told to exit

(PECL gearman >= 0.5.0) Test whether the task is currently running

(PECL gupnp >= 0.1.0) Cancels the variable change notification

(PECL svn >= 0.1.0) Schedules the addition of an item in a working directory

(PHP 4, PHP 5, PHP 7) Returns a list of files in the given directory

(PHP 4, PHP 5 < 5.2.0, PECL hwapi SVN) Returns statistics about Hyperwave server

(PECL event >= 1.2.6-beta) Gets the remote address and port associated with the connection

(PECL varnish >= 0.3) Authenticate on a varnish instance

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

(No version information available, might only be in Git) Send data to all job servers to see if they echo it