(PECL ev >= 0.2.0)
EvLoop::timer — Creates EvTimer watcher object associated with the current event loop instance
$after
   ,$repeat
   ,$callback
   ,$data
     = null
   ,$priority
     = 0
   Creates EvTimer watcher object associated with the current event loop instance
All parameters have the same meaning as for EvTimer::__construct()
Returns EvTimer object on success
