checkUser

if(isset($_POST['submit'])){
		$Username = mysqli_real_escape_string($MyS, $_POST['user']);
		$Pass = mysqli_real_escape_string($MySQLIConnect, $_POST['pass']);
		$Password = crypt ($Pass, "nd");
		$Check = mysqli_query($MySQLIConnect, "SELECT * FROM  LIMIT 1");

		if(mysqli_num_rows($Check) == 1){
			while ($row = $Check->fetch_assoc()) {
				$user = $row['user'];
				$failedLog = $row['failedLog'];
				if ($failedLog >= 5) {
					die ('Sie haben Ihr passwort zu oft falsch eingegeben, bitte wenden Sie sich an Ihren Administrator.');
				}
				$_SESSION['userId'] = $row['userId'];
				$sql = "UPDATE `user` SET `failedLog` = '0' WHERE `user` = '$user'";
				$result = $MySQLIConnect->query($sql);
				if (!$result) {
					die ('Etwas stimmte mit dem Query nicht: '.$MySQLIConnect->error);
				}
				header('Location: loggedin.php');
			}
		}else {
			$Check = mysqli_query($MySQLIConnect, "SELECT * FROM  LIMIT 1");
				if(mysqli_num_rows($Check) == 1){
					$sql = "UPDATE `user` SET `failedLog` = failedLog+1 WHERE `username` = '$Username'";
					$result = $MySQLIConnect->query($sql);
		    		if (!$result) {
		    			die ('Etwas stimmte mit dem Query nicht: '.$MySQLIConnect->error);
		    		}
				}

			$_SESSION ['message'] = ("Ihr Benutzername oder Passwort ist falsch!");
			header('Location: index.php');
		}
	}