workman中怎么用mysql?

$ws_worker->onMessage = function($connection, $data)
{
    // 向客户端发送hello $data
    //$connection->send('hello ' . $data);
    这里可以写mysql链接写入数据吗？
};

$name = "root";
$passwd = "6admnv370F";
$dbhost = "localhost";
$dbdatabase = "petdb";

$db_connect = mysql_connect ( $dbhost, $name, $passwd );

mysql_select_db ( $dbdatabase, $db_connect );

$sql="insert into pettable(imei,longitude,latitude,time)
        values('$imei','$longitude','$latitude','$time')";
if(!mysql_query($sql,$db_connect))
{

}
else
{

}