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Ò»¸öÍⲿxmlÎļþ01.xml
¡­¡­
<table id="2">
<head>Öйú </head>
</table>
<table id="3">
<head>ÆäËüС¹ú </head>
</talbe>
¡­¡­
ÎÒÏÖÔÚÒªÐÞ¸ÄÕâ¸öxmlÒ»½Úµã <table id="2">Ï <head>Öйú </head>µÄÄÚÈÝ
ÔõôÐ޸쬲»Òª¸øÎÒforeachµÄ·½·¨£¬ÄǸö¶ÔÓÚÉÏÍò¸ötable½ÚµãµÄxml£¬Ì«ÏûºÄ×ÊÔ´£¡

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PHP code:
$xmldata=simplexml_load_string($strXML);
$dup = $xmldata->xpath("/html/table[@id='2']");
$dup[0]->head = 'link2';
$xml = $xmldata->asXML();
echo $xml;

simplexml ¼Óxpath

PHP code:
$strXML = <<<TEST
<html>
<table id="2">
<head>Öйú</head>
</table>
<table id="3">
<head>ÆäËüС¹ú</head>
</table>
</html>
TEST;

$dom = new DOMDocument();
$dom->loadXML($strXML);

$xpath = new DOMXPath($dom);
$emps = $xpath->query("/h


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