Automatically determine which version of Socket.io is used

[kbu1564]

The Version 0.X and 1.X of Socket.io is get the version of /socket.io/socket.io.js like next.

public function getVersion()
{
    // get socket.io version
    $url = 'http://' . $this->url['host'] . ':' . $this->url['port'];
    if (true === $this->url['secured']) {
        $url = 'https://' . $this->url['host'] . ':' . $this->url['port'];
    }

    $url .= '/socket.io/socket.io.js';
    // need to ini_set('allow_url_fopen', 'On');
    $socketio = file_get_contents($url);
    preg_match_all('/io\.version = [\'\"]([0-9\.]+)[\'\"];/', $socketio, $match);

    if (isset($match[1]) === false)
        return '1.x.x';

    return $match[1][0];
}

If elephant.io/src/Client.php of refacto-3.0 is used like next, i want to listen for your think.

// The Client class was used getVersion() into the Client::__construct.
$client = new Client('http://localhost:9001');

$client->initialize();
$client->emit('broadcast', ['foo' => 'bar']);
$client->close();

[Taluu]

I don't think it should be done in the Client, as it could be used for something else than Socket.io. But, as I already discussed it in #53 (comment), it should maybe be put into a factory of some sorts.

I'll try to add something later, so I'm keeping this ticket open to leave a reminder. :)

[kbu1564]

The issue of #53 was solved about question of myself.
so i was able to understand for direction of this project.

Thanks!! :)