load('x.xml');$em=$dom->getElementsByTagName('emotions');$em=$em->item(0);$items=$em->getElementsByTagName('item');foreach($items as $a){foreach($a->attributes as $b){if($b->nodeValue=='Birthday'){$a->setAttribute('name','nBirthday');}}}$t=$dom->createElement('item');$t->setAttribute('name','x');$t->setAttribute('src','www.sohu.com');$t->setAttribute('duration','duration');$em->appendChild($t);$dom->save('x.xml');?>