3v4l.org

run code in 300+ PHP versions simultaneously
<?php $html = <<<HTML <div> <img src="er" alt="aa" width="641" height="481" class="class1 class2" /> </div> HTML; $doc = new DOMDocument(); $doc->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD); $xpath = new DOMXPath($doc); foreach ($doc->getElementsByTagName('img') as $img) { $img->setAttribute('class', $img->getAttribute('class') . " myclass"); } echo $doc->saveHTML();
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
<div> <img src="er" alt="aa" width="641" height="481" class="class1 class2 myclass"> </div>
preferences:
80.41 ms | 992 KiB | 4 Q