我正在尝试在我的XML文档中为一个数字添加+1,如果它只是一个没有问题,但是...如果我想更新2个节点它会出错?
以下是我的尝试:
$xml = new DOMDocument("1.0", "ISO-8859-1");
$xml->formatOutput = true;
$xml->preserveWhiteSpace = false;
$xml->loadXML('<?xml version="1.0"?>
<friends>
<friend id="1">
<name>MyTest</name>
<games>5</games>
<wins>3</wins>
</friend>
</friends>');
echo "<xmp>OLD:\n". $xml->saveXML() ."</xmp>";
$library = $xml->documentElement;
$xpath = new DOMXPath($xml);
$xpath2 = new DOMXPath($xml);
$result = $xpath->query('//friend[@id="1"]/games');
if($result){
$cgames = $xpath->query('//friend[@id="1"]/games')->item(0);
$cgames = $cgames->nodeValue;
$result->item(0)->nodeValue = $cgames+1;
$cwins = $xpath->query('//friend[@id="1"]/wins')->item(0);
$cwins = $cwins->nodeValue;
$result->item(0)->nodeValue = $cwins+1;
echo "<xmp>NEW:\n". $xml->saveXML() ."</xmp>";
}
这样做时我只更新,它的新值是4?应该是6,应该是4 ......我做错了什么?
请提前帮助和感谢: - )
答案 0 :(得分:0)
添加$result2
,因为您尝试更新/wins
搜索<{1}}
/games
并删除$result = $xpath->query('//friend[@id="1"]/games');
$result2 = $xpath->query('//friend[@id="1"]/wins');
if($result){
$cgames = $result->item(0)->nodeValue;
$result->item(0)->nodeValue = $cgames+1;
}
if($result2){
$cwins = $result2->item(0)->nodeValue;
$result2->item(0)->nodeValue = $cwins+1;
}
echo "<xmp>NEW:\n". $xml->saveXML() ."</xmp>";
,您不需要2 $xpath2 = new DOMXPath($xml);
s