3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar'); $arrResults['empty node'] = $sxe->asXML(); $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar', ''); $arrResults['empty string'] = $sxe->asXML(); $sxe = new SimpleXMLElement('<foo></foo>'); $sxe->addChild('bar'); $sxe->bar = ''; $arrResults['overwritten empty string'] = $sxe->asXML(); foreach($arrResults as $key => $strResult){ echo $key . ': ' . $strResult; }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
empty node: <?xml version="1.0"?> <foo><bar/></foo> empty string: <?xml version="1.0"?> <foo><bar/></foo> overwritten empty string: <?xml version="1.0"?> <foo><bar/></foo>
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
empty node: <?xml version="1.0"?> <foo><bar/></foo> empty string: <?xml version="1.0"?> <foo><bar/></foo> overwritten empty string: <?xml version="1.0"?> <foo><bar></bar></foo>
preferences:
51.91 ms | 407 KiB | 5 Q