اضافه کردن به مقدار پوینت(امتیاز)

//if (!isset($_GET['useame']) || !isset($_GET['password']) || !isset($_GET['email']) ){
// die ("field does not exit !") ;
//}
$user = $_GET['useame'] ;
$pass = $_GET['password'] ;
$poi = $_GET['point'] ;

/*$ema = $_GET['email'];
*/

// Create connection
$conn = new mysqli($serveame, $useame, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "UPDATE gift1 SET point='$poi' WHERE useame='$user'";

if ($conn->query($sql) === TRUE) {
echo "succes";
} else {
echo " false : " . $conn->error;
}

$conn->close();
?>