(PECL varnish >= 0.6) Get the log tag string representation by its index

(PECL gearman >= 0.5.0) Wait for and perform jobs

(PECL tcpwrap >= 0.1.0) Performs a tcpwrap check

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

(PECL memcached >= 2.0.0) Clears all servers from the server list

(PECL event >= 1.2.6-beta) Stop dispatching events

(PECL memcached >= 0.1.0) Invalidate all items in the cache

(PECL memcached >= 2.0.0) Close any open connections

(PECL gupnp >= 0.1.0) Notifies listening clients

(PECL sam >= 0.1.0) Cancel a subscription to a specified topic.