<!DOCTYPE html>
<html>
<body>
<?php
$a = "32"; // string
settype($a, "integer"); // $a is now integer
$b = 32; // integer
settype($b, "string"); // $b is now string
$c = true; // boolean
settype($c, "integer"); // $c is now integer (1)
?>
</body>
</html>