3v4l.org

run code in 200+ PHP versions simultaneously
<?php $xml = new SimpleXMLElement('<xml xmlns="http://xml" xmlns:foo="http://foo" xmlns:bar="http://bar" />'); $foo = $xml->addChild('foo', null, 'http://foo'); $tag = $foo->addChild('bar', null, 'http://bar'); $foo->bar[0] = 'Hello World!'; $dom = dom_import_simplexml($xml)->ownerDocument; $dom->formatOutput = true; echo $dom->saveXML();
Output for 7.0.12 - 7.4.0
<?xml version="1.0"?> <xml xmlns="http://xml" xmlns:foo="http://foo" xmlns:bar="http://bar"> <foo:foo> <bar:bar/> <foo:bar>Hello World!</foo:bar> </foo:foo> </xml>
Output for 5.6.38 - 7.0.11
<?xml version="1.0"?> <xml xmlns="http://xml" xmlns:foo="http://foo" xmlns:bar="http://bar"> <foo:foo> <bar:bar>Hello World!</bar:bar> </foo:foo> </xml>