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<?php $str='<root> <book id="1"> <title id="aaa">...</title> <author>...</author> </book> <book id="2"> <title>...</title> <author>...</author> </book> <book id="3"> <title>...</title> <author>...</author> </book> </root>'; $dom = new DOMDocument; $dom->loadXML($str); $xpath = new DOMXPath($dom); $book = $xpath->query("//book[@id='2']")->item(0); //var_dump($book); $html = $dom->saveXML($book->childNodes); print_r($html); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: DOMDocument::saveXML(): Argument #1 ($node) must be of type ?DOMNode, DOMNodeList given in /in/t3pS6:22 Stack trace: #0 /in/t3pS6(22): DOMDocument->saveXML(Object(DOMNodeList)) #1 {main} thrown in /in/t3pS6 on line 22
Process exited with code 255.
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 Fatal error: Uncaught TypeError: DOMDocument::saveXML(): Argument #1 ($node) must be of type ?DOMNode, DOMNodeList given in /in/t3pS6:22 Stack trace: #0 /in/t3pS6(22): DOMDocument->saveXML(Object(DOMNodeList)) #1 {main} thrown in /in/t3pS6 on line 22
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 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, instance of DOMNodeList given in /in/t3pS6:22 Stack trace: #0 /in/t3pS6(22): DOMDocument->saveXML(Object(DOMNodeList)) #1 {main} thrown in /in/t3pS6 on line 22
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, instance of DOMNodeList given in /in/t3pS6:22 Stack trace: #0 /in/t3pS6(22): DOMDocument->saveXML(Object(DOMNodeList)) #1 {main} thrown in /in/t3pS6 on line 22
Process exited with code 255.
Output for 5.6.0 - 5.6.27
Catchable fatal error: Argument 1 passed to DOMDocument::saveXML() must be an instance of DOMNode, instance of DOMNodeList given in /in/t3pS6 on line 22
Process exited with code 255.

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