How to place two forms on the same page?

Question

I want to place both register and login form on the same page.
They both starts with:

if (!empty($_POST)) ... 

so, I need something l

Answer 1

Here are two form with two submit button:

And here is your PHP code:

if (isset($_POST['btnPostMe1'])) { //your code 1 }
if (isset($_POST['btnPostMe2'])) { //your code 2 }