(PECL event >= 1.2.6-beta)
Event::setTimer — Re-configures timer event
   Re-configures timer event. Note, this function doesn't invoke obsolete
   libevent's
   event_set.
   It calls
   event_assign
   instead.
  
base
    The event base to associate with.
cb
    The timer event callback. See Event callbacks.
arg
    Custom data. If specified, it will be passed to the callback when event triggers.
