3v4l.org

run code in 300+ PHP versions simultaneously
<?php $doc = new DOMDocument(); $node = $doc->createElement('sample'); $doc->appendChild($node); $group = $doc->createElement('field-group'); $node->appendChild($group); $group->setAttribute('caption', 'Group Caption'); echo $doc->saveXML($node);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.2.18, 8.3.0 - 8.3.6
<sample><field-group caption="Group Caption"/></sample>
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: domdocument in /in/M8ODB on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: domdocument in /in/M8ODB on line 2

preferences:
259.7 ms | 401 KiB | 399 Q