Uncompleted fields within a form

[dr_overload]

I am currently using this code to ensure my fields are completed for my registration form:

//This makes sure they did not leave any fields blank

if (!$POST['firstname'] |!$POST['surname'] |!$POST['email'] |!$POST['username'] | !$POST['pass'] | !$POST['pass2'] ) {
die('You did not complete all of the required fields');
}

If the users fails to complete a field then the form just disapears and the text 'You did not complete all of the required fields' is displayed on a blank background.

However what I would like is rather than the form dies - it stays on the page and the error message is displayed next to the appropriate field. How can I achieve this?

Many thanks as always.
Jon

[adhall]

Double-bar (||) for logical OR.

You would need to put your error-checking logic at the top of the form page. If an error is caught, create a unique variable with an error message. If there is no error, process the form and redirect to another page or exit the script (so the form doesn't show again).

Down in the form, next to each field, just print the unique variable corresponding to that field.