Swoole\WebSocket\Server->on('message', fn)

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  5. Swoole\WebSocket\Server->on('message', fn)

Declaration

<?php
Swoole\WebSocket\Server->on ('message', callable $callback)

Parameters

event

The event name

callback

callback function

Return

success

if success, it returns TRUE, otherwise it returns FALSE.

Description

The function is executed when a new data Frame is received by the WebSocket Server. The logics of processing the request from the WebSocket client should be defined within this function.

Example

<?php

use Swoole\WebSocket\Server;
use Swoole\Http\Request;
use Swoole\WebSocket\Frame;

$server = new Server("0.0.0.0", 9502);

$server->on("start", function (Server $server) {
    echo "Swoole WebSocket Server is started at http://127.0.0.1:9502\n";
});

$server->on('open', function(Server $server, Swoole\Http\Request $request) {
    echo "connection open: {$request->fd}\n";
    $server->tick(1000, function() use ($server, $request) {
        $server->push($request->fd, json_encode(["hello", time()]));
    });
});

$server->on('message', function(Server $server, Frame $frame) {
    echo "received message: {$frame->data}\n";
    $server->push($frame->fd, json_encode(["hello", time()]));
});

$server->on('close', function(Server $server, int $fd) {
    echo "connection close: {$fd}\n";
});

$server->start();