on("open",function ($client) { $fd = $client->getTcpClient()->sock; echo "fd: $fd is open\n"; $msg = [ "path" => "/index/index/index", "data" => "hhh" ]; $client->send(json_encode($msg)); }); $client->on("message", function ($client, $frame) { $fd = $client->getTcpClient()->sock; echo "fd: $fd received: {$frame->data}\n"; }); $client->on("close", function ($client) { $fd = $client->getTcpClient()->sock; echo "fd: $fd is closed\n"; }); $client->connect("127.0.0.1", 9502);