How to parse an email address
 

I wasnt sure where to ask this but I know people here will be able to help, so here it goes.

I am trying to parse the email address when people register into a form on the registeration confirmation page.

This is the info I was given.

I tried <iframe frameborder="0" style="width: 650px; height: 500px; border: 0;"
src="http://www.bravenet.com/c/coreg/iframe.php?partner=gamerzneeds&email=<?= $email ?>"></iframe>

But it didnt seem to work. Is this because I did it on the page after they entered their email address? or because the code is wrong?

Thanks and hopefully someone will know the answer to this question.