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pecl install openswoole-22.1.2 | composer require openswoole/core:22.1.5
<?php OpenSwoole\WebSocket\Server->on('Start', 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 the WebSocket server starts, this causes the event loop to trigger the Start event. You may perform startup tasks within this callback but do not perform any blocking operations at this stage.
<?php
use OpenSwoole\WebSocket\Server;
use OpenSwoole\Http\Request;
use OpenSwoole\WebSocket\Frame;
$server = new Server("127.0.0.1", 9501);
$server->on("Start", function(Server $server)
{
echo "OpenSwoole WebSocket Server started at 127.0.0.1:9501\n";
});
$server->on('Open', function(Server $server, OpenSwoole\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();