'); $body = $d->body; $br = $body->appendChild($d->createElement('br')); $body->appendChild($d->createTextNode('eek')); $ook = $body->appendChild($d->createTextNode('ook')); $br2 = $body->appendChild($d->createElement('br')); $this->assertSame($br2, $br->nextElementSibling); $this->assertNull($br2->nextElementSibling); $this->assertSame($br, $ook->previousElementSibling); $this->assertNull($br->previousElementSibling); } }