Swoole\Timer::after

(PECL swoole >= 1.9.0)

Swoole\Timer::after — Execute a function after a specified time

Description

public static function Swoole\Timer::after(int $ms, callable $callback, mixed ...$params): int|false

Creates a one-shot timer, which is destroyed once its callback has run. Unlike sleep(), it does not block the current process.

Parameters

ms: The delay 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 once the delay has elapsed. It is called as callback(mixed ...$params). Unlike Swoole\Timer::tick(), the timer ID is not passed to the callback.
params: Additional values passed to callback.

Return Values

Returns the timer ID, which can be passed to Swoole\Timer::clear() to cancel the timer before it fires. Returns false if the timer could not be created, in particular when ms is less than 1.

Examples

Example #1 Swoole\Timer::after() example

<?php
Swoole\Timer::after(1000, function (string $name) {
    echo "Hello, $name\n";
}, "Swoole");
?>

The above example will output:

Hello, Swoole