Online PHP editor | output for 8VdRc

<?php $html = '<div id="one-id" class="someClassName">Some text <a href="#" title="Words" id="linkId" class="classLink">link</a> with only the class and id attrtibutes.</div>'; $dom = new DOMDocument(); $dom->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($dom); foreach ($xpath->query('//*') as $node) { for ($i = $node->attributes->length - 1; $i >= 0; --$i) { $attr = $node->attributes->item($i); if (!in_array($attr->name, ['id', 'class'])) { $node->removeAttribute($attr->name); } } } echo $dom->saveHTML();