I added a PHP script to redirect the form upon submission.

However, I only want the redirect to happen if the submission is valid. If required fields have not been filled in, I want the user to stay there, and complete the form properly.

How can I do this? Here is my (redacted) script:

$theID = JRequest::getVar('id');
header('Location:http://server.com/index.php?option=com_content&view=article&id=' . $theID . '');
die();

Problem solved - I had the PHP code in the wrong box. I had it in "Script called on form process" instead of "Script called after form has been processed".


On an unrelated note - perhaps this will help someone else: In some scenarios, the URL variable can go away. Need to store them in the session.

Something like:

$theID = JRequest::getVar('id','error');
if ($theID != 'error') {
$_SESSION = $theID;
} else {
if(isset($_SESSION) && !empty($_SESSION)) {
$theID = $_SESSION;
}
}

Then later to use it:

if(isset($_SESSION) && !empty($_SESSION)) {
$theID = $_SESSION;
} else {
$theID = 0;
}