(PECL ev >= 0.2.0)
EvLoop::prepare — Creates EvPrepare watcher object associated with the current event loop instance
$callback , mixed $data = null , int $priority = 0 ): EvPrepareCreates EvPrepare watcher object associated with the current event loop instance
All parameters have the same maening as for EvPrepare()
Returns EvPrepare object on success