(PECL varnish >= 0.8) Set the class host configuration param

(PECL mqseries >= 0.10.0) MQSeries MQPUT void

(PECL memcache >= 0.2.0) Retrieve item from the server

(PECL event >= 1.2.6-beta) Set event listener's error callback

(PECL gearman >= 0.6.0) Add client options

(PECL memcached >= 0.1.0) Replace the item under an existing key

(PECL event >= 1.2.6-beta) Dispatch pending events

(PECL svn >= 0.2.0) Copies a file or a directory, returns true if all is ok, false otherwise

(PHP 5 >= 5.5.0, PHP 7) Initialize a cURL share handle

(PECL memcached >= 0.1.0) Request multiple items