Connection with websocket on PHP - php

Question

I'm working with a websocket connection and I can't get it to return a correct connection. I have no errors. It just tells me that the connection is failed.
The test token is real: $token = 'TYcagYNyseG4aFooYjU1hy0lIsXDrrk34mWcDn4N2VE=';
<?php
$urlwebsocket = 'wss.remarkets.primary.com.ar';
$host = 'wss.remarkets.primary.com.ar';
$port = 443;
$token = 'TYcagYNyseG4aFooYjU1hy0lIsXDrrk34mWcDn4N2VE=';
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
if(!$socket){
echo "Error socket";
exit;
}
// Connect host
$result = socket_connect($socket, $host, $port);
if(!$result){
echo "Error connect host";
socket_close($socket);
exit;
}
// send auth
$request = [
'event' => 'auth',
'data' => [
'token' => $token
]
];
$request = json_encode($request);
$request = "\x00" . $request . "\xff";
socket_write($socket, $request, strlen($request));
// good connect
$response = socket_read($socket, 1024);
if(strpos($response, 'Welcome') !== false){
echo "Connect";
} else{
echo "No connect";
}
// Close socket
socket_close($socket);
?>