php处理xml

1、使用php的dom对象读取

示例。

//echo $id;
	$sql="select city_api from ".$GLOBALS ['ecs']->table ( 'groupon_site' )." where site_id=".$cid;

	$api=$GLOBALS['db']->getOne($sql);
	$xml=file_get_contents($api);
	$doc=new DOMDocument();
	$doc->loadXML($xml);
	switch($cid)
	{
		case 3:
			$citys=$doc->getElementsByTagName('city');
			foreach($citys as $city)
			{
				$city_names=$city->getElementsByTagName('name');
				echo $city_names->item(0)->nodeValue;
			}
			break;
	}

2、采用php函数simplexml_load_string也可读取。