How do I do this (PHP) with a gettype?

Ok, I got this, but now, I need to know how to use this with a gettype. How do I do this? Thanks. (Here's the script).

<?php
$john=21;
$james=22;
$janet=23;
$jane=24;
$jared=25;
echo 'John is '.$john.' years old, James is '.$james.' years old, Janet is '.$janet.' years old, Jane is '.$jane.' years old, and Jared is '.$jared.' years old.';
?>

Anwered 2010-02-05 18:16:15 by Paul W

All your variables are integers. I don't see any need at all to use gettype in this script. What is your teacher smoking these days?