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<?php $doc = new DOMDocument(); $doc->appendChild($doc->createElement('container')); $doc->documentElement->setAttributeNode($doc->createAttributeNS('http://php.net/ns1', 'hello')); echo $doc->saveXML();
Output for git.master_jit, git.master, rfc.property-hooks
<?xml version="1.0"?> <container xmlns="http://php.net/ns1" hello=""/>

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