public static function sendCommand($command)
{
if (self::$connection == null) {
self::$connection = stream_socket_client("tcp://127.0.0.1:8989", $errno, $errorMessage);
if (self::$connection === false) {
throw new UnexpectedValueException("Failed to connect: {$errorMessage}");
}
}
fwrite(self::$connection, $command);
}
