add('N', ['van der Harten', ['Rene', 'J.'], "", 'Sir', 'R.D.O.N.'], ['SORT-AS' => ['Harten', 'Rene']]); unset($card->UID); $expected = implode("\r\n", [ "BEGIN:VCARD", "VERSION:4.0", "PRODID:-//Sabre//Sabre VObject " . Version::VERSION . '//EN', "N;SORT-AS=Harten,Rene:van der Harten;Rene,J.;;Sir;R.D.O.N.", "END:VCARD", "" ]); $this->assertEquals($expected, $card->serialize()); } }