利用php dom函数实现简单的单页信息抓取,见如下代码：
loadhtml($pages);
$dom = $doc->getelementsbytagname('a');
for ($i=0;$ilength;$i++){
$node = $new_doc->createelement('a',$dom->item($i)->nodevalue);
$newnode = $new_doc->appendchild($node);
$newnode->setattribute('href',$dom->item($i)->getattribute('href'));
$newnode->setattribute('style','display:block;margin-left:30px;');//echo $dom->item($i)->getattribute('src').'';
}
echo $new_doc->savehtml();
?>