PHP: $conn = mysqli_connect($servername, $username, $password, $database) or die( .mysqli_error($conn)); $name = mysqli_escape_string($conn, $_POST['name']); $password = mysqli_escape_string($conn, $_POST['password']); $query = "SELECT UName FROM users WHERE UName = $name AND UPSW = $password"; $result = mysqli_query ($conn, $query); if(mysqli_num_rows($result)> 0){ $var = true; echo '<script language="javascript"> var isp = '.$var.';</script> $var'; }