Why is my page not redirecting on success

Question

I have some code that I was given; there is a $_POST variable (email) that shows as having content, yet when I test for it using isset, it fails. I don\'t understand w

Answer 1

Take out the !. That should fix it: if you enter a valid email you are negating true (which becomes false).

Keep in mind that when you use isset() it returns a boolean (true or false)

Answer 2

Try :

if (empty($_POST['email']))  {  
header("Location: "."error.php?msg=".rawurlencode("We did not find your information, please enter the needed information again."));
exit;
} 

Answer 3

The reason why the redirect with header("Location: ...") is not working is, that you already sent a header by echoing something.

Any header-redirection won´t work afterwards.