3v4l.org

run code in 300+ 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 - 7.0.33, 7.1.0 - 7.1.30, 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 - 8.3.4, 8.3.6
<?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 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 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 - 5.6.40, 7.0.0 - 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>

preferences:
211.06 ms | 402 KiB | 235 Q