whatson - 8:02 pm on Sep 15, 2012 (gmt 0)

I kind of get isset function, but not entirely.
I understand it is mainly used with if statements.
Is it just for submitting forms? And what is the difference for isset with GET and POST?

If I use it for GET
e.g. if(isset($_GET['page']))
Does this check the url to see if there is a value for page?

And for POST, does it just mean, if the form submit button is clicked?