PHP xpath是干什么的
PHP xpath是干什么的？
PHP xpath() 函数
定义和用法
xpath() 函数运行对 XML 文档的 XPath 查询。高佣联盟 www.cgewang.com
如果成功，该函数返回 SimpleXMLElements 对象的一个数组。如果失败，则返回 FALSE。
语法
class SimpleXMLElement
{
string xpath(path)
}
参数
path 必需。规定要在 XML 文档中搜索的 XPath 路径。
实例
XML 文件
<?xml version="1.0" encoding="ISO-8859-1"?> <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note>
PHP 代码
<?php
$xml = simplexml_load_file("test.xml");
$result = $xml->xpath("from");
print_r($result);
?>上面的代码将输出：
Array ( [0] => SimpleXMLElement Object ( [0] => Jani ) )
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