(PECL swoole >= 1.9.0)
Swoole\Timer::tick — Set a repeating interval timer
Sets a timer that triggers every ms milliseconds.
Unlike a timer created with Swoole\Timer::after(),
it keeps triggering until it is removed with
Swoole\Timer::clear().
ms
The interval in milliseconds. Must be greater than or equal to
1; a lower value emits an E_WARNING
and the call fails.
callback
The function to execute on every tick. It is called as
callback(int $timer_id, mixed ...$params): the ID of
the timer is passed as the first argument, followed by the values given
in params.
params
Additional values passed to callback after the
timer ID.
Returns the timer ID, which can be passed to
Swoole\Timer::clear(). Returns false if the timer
could not be created, in particular when ms is less
than 1.
示例 #1 Swoole\Timer::tick() example
<?php
$ticks = 0;
Swoole\Timer::tick(1000, function (int $timer_id, string $label) use (&$ticks) {
echo "tick #", ++$ticks, " ($label)\n";
if ($ticks === 3) {
Swoole\Timer::clear($timer_id);
}
}, "job");
?>以上示例会输出：
tick #1 (job) tick #2 (job) tick #3 (job)