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<?php $doc = new DOMDocument('1.0', 'UTF-8'); $doc->saveXML('',LIBXML_NOEMPTYTAG);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: DOMDocument::saveXML(): Argument #1 ($node) must be of type ?DOMNode, string given in /in/bT45H:4 Stack trace: #0 /in/bT45H(4): DOMDocument->saveXML('', 4) #1 {main} thrown in /in/bT45H on line 4
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to DOMDocument::saveXML() must be an instance of DOMNode or null, string given in /in/bT45H:4 Stack trace: #0 /in/bT45H(4): DOMDocument->saveXML('', 4) #1 {main} thrown in /in/bT45H on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.20
Fatal error: Uncaught TypeError: Argument 1 passed to DOMDocument::saveXML() must be an instance of DOMNode, string given in /in/bT45H:4 Stack trace: #0 /in/bT45H(4): DOMDocument->saveXML('', 4) #1 {main} thrown in /in/bT45H on line 4
Process exited with code 255.
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Catchable fatal error: Argument 1 passed to DOMDocument::saveXML() must be an instance of DOMNode, string given in /in/bT45H on line 4
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Warning: DOMDocument::saveXML() expects parameter 1 to be DOMNode, string given in /in/bT45H on line 4
Output for 5.0.0 - 5.0.5
Notice: Use of undefined constant LIBXML_NOEMPTYTAG - assumed 'LIBXML_NOEMPTYTAG' in /in/bT45H on line 4 Warning: DOMDocument::saveXML() expects at most 1 parameter, 2 given in /in/bT45H on line 4
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: domdocument in /in/bT45H on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: domdocument in /in/bT45H on line 3

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