prepare('INSERT INTO `test` (`nickn`) VALUES (nickn)')) { $nickn = (isset($_POST['nickn']) ? strval($_POST['nickn']) : '$nickn'); $stmt->bind_param('ss', $curS, $nickn); if ($stmt->execute()) { echo 'data received, inserting...'; $stmt->close(); } else { echo 'error'; $stmt->close(); } } ?>