<?php
$matches = "antarctica";
$query = "arctic";
echo strstr($matches, $query) ?
"match" : "no match";
?>
PD9waHAKCiRtYXRjaGVzID0gImFudGFyY3RpY2EiOwokcXVlcnkgPSAiYXJjdGljIjsKCmVjaG8gc3Ryc3RyKCRtYXRjaGVzLCAkcXVlcnkpID8gIm1hdGNoIiA6ICJubyBtYXRjaCI7Cgo/Pg==