Online PHP editor | refs for fR8oX

<?php $searchTerm = "abcd"; $replaceTerm = "XXXX"; $test=array("$searchTerm/$searchTerm_.mp3", "$searchTerm", "xay$searchTerm", "asdasd/$searchTerm.mp3", "$searchTerm.", "blahahbasd$searchTerm"); foreach ($test as $t) echo "$t => " . preg_replace("/(". preg_quote($searchTerm) . "([^_.])|". preg_quote($searchTerm) . "$)/x", preg_quote($replaceTerm) . "\${2}", $t) . "\n";