Join 4,000+ others and never miss out on new tips, tutorials, and more.
4.x is outdated, please check the latest version 22.x
Latest version:
pecl install openswoole-22.1.2
<?php Swoole\WebSocket\Server->on('Open', callable $callback)
The event name to set a callback for
Callable function for the server event type
If success, it returns true
, otherwise it returns false
This function is executed when a new WebSocket connection is established and has completed the Handshake
stage.
However, this event is only triggered if you have not implemented your own handshake function, if you have defined your own Handshake
event callback, then Swoole won't trigger the Open
event as it is up to you to provide this logic. See the Handshake event documentation
for more information about this.
You are not required to register this callback event.
The Swoole\Http\Request $request
object that is passed to the Open
event contains HTTP request data and information about the completed handshake the client went through.
In the Open
event callback you can push data back to the client if you need to or even decide to close the connection at this stage.
<?php
use Swoole\WebSocket\Server;
use Swoole\Http\Request;
use Swoole\WebSocket\Frame;
$server = new Server("127.0.0.1", 9501);
$server->on("Start", function(Server $server)
{
echo "Swoole WebSocket Server started at 127.0.0.1:9501\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();