<?php
$s = "asdfas fas fasfasf <div>this <strong>test</strong> is the variable</div> afasfasfa";
?>
PD9waHAKCiAgJHMgPSAiYXNkZmFzIGZhcyBmYXNmYXNmIDxkaXY+dGhpcyA8c3Ryb25nPnRlc3Q8L3N0cm9uZz4gaXMgdGhlIHZhcmlhYmxlPC9kaXY+IGFmYXNmYXNmYSI7CiAgZWNobyBwcmVnX3JlcGxhY2UoIi88ZGl2PiguKj8pPFwvZGl2Pi8iLCAiJDEiLCAkcyk7Cj8+