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HomeBackend DevelopmentPHP Tutorial simpleXML object里面不能读出数据怎么处理

simpleXML object里面不能读出数据怎么办?

本帖最后由 joebnb 于 2014-02-26 11:01:22 编辑
class just{<br />
	function xmlInclude($data){<br />
		$xml = simplexml_load_file(dirname(__FILE__).'/jump.xml');<br />
		foreach($xml->Keyword->xpath("//*[data='$data']") as $item){<br />
		  return $item;<br />
		}<br />
	}<br />
}<br />
$TR = new just;<br />
$cr = $TR->xmlInclude(查询);<br />
print_r($cr);<br />
$cr=(array)$cr;<br />
echo '<br>';<br />
print_r($cr);<br />

写了一个simplexml解析,print_r发现它出来的是simpleXML object不是数组
SimpleXMLElement Object ( [data] => 查询 [page] => Array ( [0] => dbcon.php [1] => select.php [2] => footer.php ) ) <br />
Array ( [data] => 查询 [page] => Array ( [0] => dbcon.php [1] => select.php [2] => footer.php ) )

里面的数值怎么提取,百度上的答案都是转换为数组,我也试着这么做了
可是出来后
echo $cr[0].$cr[0][0].$cr[1][0]

都不能获取到数值并提示:
Notice: Undefined offset: 0 in D:\Program files\WEB Edit\phpLight2013\WWW\Core\xml.php on line 23
Notice: Undefined offset: 0 in D:\Program files\WEB Edit\phpLight2013\WWW\Core\xml.php on line 23

请问怎么样才能从simplexml obj里直接取值?像这种数组中还有数组的情况如何取值?$cr = $TR->xmlInclude(查询);
$cr=(array)$cr;
echo $cr['data'];
echo $cr['page'][1];

注意:$cr=(array)$cr; 只是将第一层对象转换成了数组
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