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run code in 200+ php & hhvm versions
Bugs & Features
<?php /** * @link http://stackoverflow.com/a/29864193/367456 */ $buffer = <<<XML <?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY > <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> XML; //libxml_disable_entity_loader(false); $xml = simplexml_load_string($buffer); $xml->asXML('php://output'); $xml = simplexml_load_string($buffer, 'SimpleXMLElement', LIBXML_NOENT); $xml->asXML('php://output');
based on biSsC
Output for 7.0.0 - 7.2.6
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Warning: simplexml_load_string(): Unable to find the wrapper "expect" - did you forget to enable it when you configured PHP? in /in/8205l on line 18 Warning: simplexml_load_string(): I/O warning : failed to load external entity "expect://id" in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Failure to process entity xxe in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Entity 'xxe' not defined in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Fatal error: Uncaught Error: Call to a member function asXML() on boolean in /in/8205l:19 Stack trace: #0 {main} thrown in /in/8205l on line 19
Process exited with code 255.
Output for 5.6.8 - 5.6.28
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Warning: simplexml_load_string(): Unable to find the wrapper "expect" - did you forget to enable it when you configured PHP? in /in/8205l on line 18 Warning: simplexml_load_string(): I/O warning : failed to load external entity "expect://id" in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Failure to process entity xxe in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Entity 'xxe' not defined in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Fatal error: Call to a member function asXML() on boolean in /in/8205l on line 19
Process exited with code 255.
Output for 5.3.0 - 5.5.35
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Warning: simplexml_load_string(): Unable to find the wrapper "expect" - did you forget to enable it when you configured PHP? in /in/8205l on line 18 Warning: simplexml_load_string(): I/O warning : failed to load external entity "expect://id" in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Failure to process entity xxe in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Entity 'xxe' not defined in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Fatal error: Call to a member function asXML() on a non-object in /in/8205l on line 19
Process exited with code 255.
Output for 5.1.0 - 5.1.1, 5.1.3 - 5.2.17
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Notice: simplexml_load_string(): Unable to find the wrapper "expect" - did you forget to enable it when you configured PHP? in /in/8205l on line 18 Warning: simplexml_load_string(): I/O warning : failed to load external entity "expect://id" in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Failure to process entity xxe in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Warning: simplexml_load_string(): Entity: line 4: parser error : Entity 'xxe' not defined in /in/8205l on line 18 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 18 Warning: simplexml_load_string(): ^ in /in/8205l on line 18 Fatal error: Call to a member function asXML() on a non-object in /in/8205l on line 19
Process exited with code 255.
Output for 5.1.2
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Notice: simplexml_load_string(): Unable to find the wrapper "expect" - did you forget to enable it when you configured PHP? in /in/8205l on line 19 Warning: simplexml_load_string(): I/O warning : failed to load external entity "expect://id" in /in/8205l on line 19 Warning: simplexml_load_string(): Entity: line 4: parser error : Failure to process entity xxe in /in/8205l on line 19 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 19 Warning: simplexml_load_string(): ^ in /in/8205l on line 19 Warning: simplexml_load_string(): Entity: line 4: parser error : Entity 'xxe' not defined in /in/8205l on line 19 Warning: simplexml_load_string(): <!ENTITY xxe SYSTEM "expect://id" >]><foo>&xxe;</foo> in /in/8205l on line 19 Warning: simplexml_load_string(): ^ in /in/8205l on line 19 Fatal error: Call to a member function asXML() on a non-object in /in/8205l on line 20
Process exited with code 255.
Output for 5.0.0 - 5.0.5
<?xml version="1.0"?> <!DOCTYPE foo [ <!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "expect://id"> ]> <foo>&xxe;</foo> Notice: Use of undefined constant LIBXML_NOENT - assumed 'LIBXML_NOENT' in /in/8205l on line 18 Warning: simplexml_load_string() expects at most 2 parameters, 3 given in /in/8205l on line 18 Fatal error: Call to a member function asXML() on a non-object in /in/8205l on line 19
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: simplexml_load_string() in /in/8205l on line 15
Process exited with code 255.
Output for 4.3.2 - 4.4.1, 4.4.3 - 4.4.4
Fatal error: Call to undefined function: simplexml_load_string() in /in/8205l on line 15
Process exited with code 255.
Output for 4.4.2
Fatal error: Call to undefined function: simplexml_load_string() in /in/8205l on line 16
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: simplexml_load_string() in /in/8205l on line 15