How to check whether a variable in $_GET Array is an integer?

Question

I have a page like so:

http://sitename/gallery.php?page=2

It has pagination links at the bottom by which we can br

Answer 1

You can also check with

isNAN($_GET['something']);//is_numeric($_GET['something'])

it returns a boolean value(true,flase)....if its true then it is not an integer,if false its an integer.