php读取xml实例代码

php文件
复制代码代码如下:
<？php
class xpathExtension{
public static function getNodes（$domDoc, $xpathString） {
$xp = new DOMXPath（$domDoc）;
$xp->registerNamespace（"x", "http://www.w3.org/1999/xhtml"）;
$xp->registerNamespace（"xhtml", "http://www.w3.org/1999/xhtml"）;
$xp->registerNamespace（"i18n", "http://apache.org/cocoon/i18n/2.1"）;
$ret = array（）;
$nodes = $xp->query（$xpathString）;
foreach （$nodes as $node） {
array_push（$ret, $node）;
}
return $ret;
}
}
$domDoc = new DOMDocument（）;
$domDoc->load（"x1.xml"）;
$xpathString = "//xml/products/product/description";
$domNodeList = xpathExtension::getNodes（$domDoc, $xpathString）;
//echo count（$domNodeList）;
foreach（$domNodeList as $domNode）{
echo $domNode->nodeValue;
}
？>

xml
复制代码代码如下:
<？xml version="1.0" encoding="utf-8" ？>
<xml>
<products>
<product>
<description>
abcd
</description>
</product>
</products>
</xml>