Isset($_POST['Submit'] not set after submit

     

I know it seems to be a common problem but I searched a lot of them and nothing helped me. I have the following code and on Submit nothing happens aside from a page reload. I tried with enctype and without with and


UPDATE:


      
  1. I run this code on localhost via xampp
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  3. deleting !empty($_POST['Submit']) doesn't help either
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  5. yes