Online PHP editor | output for SsA3o

<?php $data = <<<DATA <div class="classeby_class"> <div class="classos-nope"> <div class="row"> <div class="class-show"></div> </div> </div> </div> <div class="class-first-one"> <div class="container"> <div class="classes-show"> <div class="class"></div> <div class="classing"></div> </div> </div> </div> DATA; $doc = new DomDocument(); $doc->loadHTML($data); $xpath = new DOMXPath($doc); $xpath->registerNamespace("php", "http://php.net/xpath"); $xpath->registerPHPFunctions(); $classtoremove = $xpath->query("//div[1 = php:function('preg_match', '/\bclass\b/', string(@class))]"); foreach ($classtoremove as $a) { var_dump($a->getAttribute("class")); }