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<?php $dom = new DOMDocument(); $dom->loadXml('<foo xmlns=urn:foo/>'); var_dump($dom->documentElement->lookupNamespaceURI(NULL));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: DOMDocument::loadXML(): AttValue: " or ' expected in Entity, line: 1 in /in/9965o on line 4 Warning: DOMDocument::loadXML(): attributes construct error in Entity, line: 1 in /in/9965o on line 4 Warning: DOMDocument::loadXML(): Couldn't find end of Start Tag foo line 1 in Entity, line: 1 in /in/9965o on line 4 Warning: DOMDocument::loadXML(): Extra content at the end of the document in Entity, line: 1 in /in/9965o on line 4 Fatal error: Uncaught Error: Call to a member function lookupNamespaceURI() on null in /in/9965o:6 Stack trace: #0 {main} thrown in /in/9965o on line 6
Process exited with code 255.

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