(PECL ev >= 0.2.0)
EvPeriodic::__construct — Constructs EvPeriodic watcher object
$offset
,$interval
,$reschedule_cb
,$callback
,$data
= null
,$priority
= 0
Constructs EvPeriodic watcher object and starts it automatically. EvPeriodic::createStopped() method creates stopped periodic watcher.
offset
interval
reschedule_cb
Reschedule callback. You can pass null
. See
Periodic watcher operation
modes
callback
See Watcher callbacks .
data
Custom data associated with the watcher.
priority
Example #1 Periodic timer. Use reschedule callback
<?php// Tick each 10.5 secondsfunction reschedule_cb ($watcher, $now) { return $now + (10.5. - fmod($now, 10.5));}$w = new EvPeriodic(0., 0., "reschedule_cb", function ($w, $revents) { echo time(), PHP_EOL;});Ev::run();?>
Example #2 Periodic timer. Tick every 10.5 seconds starting at now
<?php// Tick every 10.5 seconds starting at now$w = new EvPeriodic(fmod(Ev::now(), 10.5), 10.5, NULL, function ($w, $revents) { echo time(), PHP_EOL;});Ev::run();?>
Example #3 Hourly watcher
<?php$hourly = EvPeriodic(0, 3600, NULL, function () { echo "once per hour\n";});?>