3v4l.org

run code in 300+ PHP versions simultaneously
<?php $doc = new DOMDocument('1.0','utf-8'); $root = new DOMElement('root'); $doc->appendChild($root); $child = new DOMElement('child'); $root->appendChild($child); $leaf = new DOMElement('leaf','text'); $child->appendChild($leaf); echo $child->ownerDocument->saveXML($child), PHP_EOL; echo simplexml_import_dom($child)->asXML(), PHP_EOL;
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
<child><leaf>text</leaf></child> <child><leaf>text</leaf></child>
preferences:
206.96 ms | 403 KiB | 190 Q