Online PHP editor | output for DgDZZ

<?php $thisid= '{7370418c-3e5a-b044-8db3-4bba6d805f72}'; $elementId = 'a test working!'; $thisurl = 'This is {7370418c-3e5a-b044-8db3-4bba6d805f72}'; function getElementPath($elementId, $thisid, $thisurl) { return preg_replace(sprintf('/%s$/', $thisid), $elementId, $thisurl); } function getElementPathFixed($elementId, $thisid, $thisurl) { return preg_replace(sprintf('/%s$/', preg_quote($thisid)), $elementId, $thisurl); } // The problem var_dump(getElementPath($elementId, $thisid, $thisurl)); // The fix var_dump(getElementPathFixed($elementId, $thisid, $thisurl));