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<?php class A {} $a = new DOMDocument(); var_dump($a->saveXML(new A()));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: DOMDocument::saveXML(): Argument #1 ($node) must be of type ?DOMNode, A given in /in/GMXNE:4 Stack trace: #0 /in/GMXNE(4): DOMDocument->saveXML(Object(A)) #1 {main} thrown in /in/GMXNE on line 4
Process exited with code 255.

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