if statement doing one thing at a time

[deadman6]

When i do this

<?php if($_POST[reset]) {
unset($_SESSION[counter]);
unset($_SESSION[display]); } ?>

with a submit button with the name reset...

when i do it this way it resets the counter on the first click then display on the second... is there a way to do it with one click?

[fastsol1]

I can't see why it would not unset both on the first click, bu there is a better way to do it.

<?php if(isset($_POST[reset])) {
unset($_SESSION['counter'], $_SESSION['display']); } ?>