Check if a variable is empty

Question

I have some user-submitted variables that I want to display in a different part of my site like this:

Term: 


        
      

Answer 1

Well they way your code is above, $key will never be empty, thus the pre_box will always be displayed. You're setting $key = 'term', which gives it a value so !empty($key) or isset($key) will always be true.

Casey's solution should give you the result you're going for.