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<Swoole\WebSocket\Server::existSwoole\WebSocket\Server::pack>
^Swoole\WebSocket\ServerLast updated: Mon, 26 Oct 2026

Swoole\WebSocket\Server::on

(PECL swoole >= 1.9.0)

Swoole\WebSocket\Server::on — Register event callback function

Description

public function Swoole\WebSocket\Server::on(string $event_name, callable $callback): ReturnType

Register event callback function

Parameters

event_name

callback

Return Values


<Swoole\WebSocket\Server::existSwoole\WebSocket\Server::pack>
^Swoole\WebSocket\ServerLast updated: Mon, 26 Oct 2026