(PECL ev >= 0.2.0)
EvLoop::periodic — Creates EvPeriodic watcher object associated with the current event loop instance
$offset
,$interval
,$callback
,$data
= null
,$priority
= 0
Creates EvPeriodic watcher object associated with the current event loop instance
All parameters have the same maening as for EvPeriodic::__construct()
Returns EvPeriodic object on success.