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Good Day I might have accidentally posted this twice, sorry about that. Here is my query, I am teaching myself PHP going through the chapters in your book, all has gone well until the section on validating forms, in particular the validating of radio buttons. # script 2.3 handle_form.php Everything works as it should except when neither of the two radio buttons are selected, this code if (isset($_REQUEST['gender'])) { $gender = $_REQUEST['gender']; } else { $gender = NULL; } Does not seem to see "gender" as a result the "You forgot to enter your gender" message does not appear. I did thoroughly check my code, asked several PHP programmers I know and they all tell me it should work. So have I done something wrong, is there a bug in my version of PHP (5.5.12), if it helps I am using Wamp Server on my PC with Windows 10. Ian