$inId_temp = mysql_entities_fix_string($connection, $_POST['inId']); $sCode_temp = mysql_entities_fix_string($connection, $_POST['signup-code']); $query = "SELECT * FROM users WHERE username='******'"; $result = $connection->query($query); if ($result != $un_temp) { }else { //JS JQuery Code goes here } */ $new_user = new registration($_POST); $new_user->add_user(); } $sessionCheck = new sessioncheck(); $sessionCheck->contIfSessionNotOk(); ?> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="description" content=""> <meta name="author" content=""> <title>HomeWork Websites</title>