MySQL connection using PocketMine plugin

//////////////////////////////////////////////////
/* How to Connect your Plugin to MySQL Database */
/* This method is not OOP but works :P          */
//////////////////////////////////////////////////
// Just Modify things you want to do. It all -  //
// depends in what your going to do.            //
//////////////////////////////////////////////////

$config = $this->plugin->getConfig()->get("MySQLi Details");

$mysql_hostname = $config["host"];
$mysql_user = $config["user"];
$mysql_password = $config["password"];
$mysql_database = $config["database"];

$bd = mysqli_connect($mysql_hostname, $mysql_user, $mysql_password);
mysqli_select_db($bd, $mysql_database);

$name = trim(strtolower($player->getName());

$sql = "UPDATE table_name SET value = 'data to update' WHERE name='".$name."'";
$result = mysqli_query($bd, $sql);