(PCC)[PHP] How to use Comparison operator: Not equal (!=) in php

(PCC)::[How-to-use-Comparison-operator:-Not-equal-(!=)-in-php]::[php]

<!DOCTYPE html>
<html>
<body>

<?php
$x = 100;  
$y = "100";

var_dump($x != $y); // returns false because values are equal
?>  

</body>
</html>