EvPeriodic::__construct
PHP function
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(PECL ev >= 0.2.0)
Constructs EvPeriodic watcher object
Description
EvPeriodic::__construct(float $offset, string $interval, callable $reschedule_cb, callable $callback, mixed $data = null, int $priority = 0)
Constructs EvPeriodic watcher object and starts it automatically. EvPeriodic::createStopped method creates stopped periodic watcher.
Parameters
offsetintervalreschedule_cbReschedule callback. You can pass null. See Periodic watcher operation modes
callbackSee Watcher callbacks.
dataCustom data associated with the watcher.
priority
Examples
Periodic timer. Use reschedule callback
php
<?php
// Tick each 10.5 seconds
function reschedule_cb ($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();
?>Periodic timer. Tick every 10.5 seconds starting at now
php
<?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();
?>Hourly watcher
php
<?php
$hourly = EvPeriodic(0, 3600, NULL, function () {
echo "once per hour\n";
});
?>See Also
- Periodic watcher operation modes
EvTimerEvPeriodic::createStopped