(PECL memcached >= 0.1.0) Set a Memcached option

(PECL memcache >= 0.2.0) Replace value of the existing item

(PECL event >= 1.2.6-beta) Detects whether event is pending or scheduled

(PECL gearman >= 0.5.0) Determine if task is known

(PECL gearman >= 0.5.0) Add a background task to be run in parallel

(PECL event >= 1.2.6-beta) Constructs signal event object

(PECL svm >= 0.1.0) Test training params on subsets of the training data.

(PECL gearman >= 0.6.0) Get worker options

(PHP 5 <= 5.0.5) Monitor a directory for changes

(PECL gupnp >= 0.1.0) Get the event subscription timeout