if empty $_POST assign value in foreach loop

Question

Hi want to build a program which creates surveys. I couldn\' t figure out how can i assign value for a question which is unanswered. Thank you for your helps.

Answer 1

If I understood you correctly, what you are trying to do is this:

foreach ( $_POST as $key => $value ) {
    if(empty($value))
        $_POST[$key] = 'This is an unanswered question!';
}

But this cannot work due to the fact that empty values aren't posted from the form.