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<?php $xml = '<?xml version="1.0" encoding="UTF-8"?> <samlp:LogoutRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" ID="%s" Version="2.0" IssueInstant="%s"> <saml:NameID></saml:NameID> <samlp:SessionIndex>ben</samlp:SessionIndex> <samlp:SessionIndex>ben2</samlp:SessionIndex> </samlp:LogoutRequest>'; $logout = $movies = new \SimpleXMLElement($xml); if (false !== $nodes = $logout->xpath('//samlp:LogoutRequest/samlp:SessionIndex[1]')) { foreach ($nodes as $node) { var_dump((string) $node); } }

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