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<swoole_timer_afterswoole_timer_tick>
^Swoole FunctionsLast updated: Mon, 26 Oct 2026

swoole_timer_exists

(PECL swoole >= 1.9.0)

swoole_timer_exists — Check if a timer callback function is existed

Description

function swoole_timer_exists(int $timer_id): bool

Parameters

timer_id

Return Values


<swoole_timer_afterswoole_timer_tick>
^Swoole FunctionsLast updated: Mon, 26 Oct 2026