connect_errno) { // Print the connection error message echo "Failed to connect to MySQL: " . mysqli_connect_error(); // You can also log the error message to a file or other logging mechanism // error_log("Failed to connect to MySQL: " . mysqli_connect_error()); exit(); // Exit the script if there's a connection error } if($_POST){ $noteID = $_POST['id'];; $note = mysqli_real_escape_string($db,$_POST['note']);; $query = "UPDATE nota SET noteContent = '$note' where id = $noteID"; mysqli_query($db,$query); } mysqli_close($db); header("Location:../index.php");