[PHP] Dynamic Array Index using Variable

[Chris Lott]

I want to do something like this to check if a variety of submitted
form fields (crn, instructor, etc) have any value in them:

$reqfields = array('crn', 'instructor');
$errorflag = 0;

foreach ($reqfields as $field) {
        if ($_REQUEST[$field] == '') {
                $errorflag = 1;
        }
}

But I can't quite get the syntax right... help??

c

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