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Homephp教程php手册PHP中SimpleXML函数用法分析

这篇文章主要介绍了PHP中SimpleXML函数用法,以实例形式详细分析了采用SimpleXML函数操作XML文件的技巧,并附带说明了相关的SimpleXML函数,需要的朋友可以参考下

本文实例讲述了关于php中SimpleXML 函数的用法,此函数是允许您把 XML 转换为对象,分享给大家供大家参考。具体分析如下:

SimpleXML 函数允许您把 XML 转换为对象,通过普通的属性选择器或数组迭代器,可以处理这个对象,就像处理任何其他对象一样.其中的一些函数需要最新的 PHP 版本.

安装:SimpleXML 函数是 PHP 核心的组成部分,无需安装即可使用这些函数,代码如下:

复制代码 代码如下:

 //以对象形式返回所有内容
 $lib = simplexml_load_file("cet4.xml");
 //以数组形式返回获取的item节点
        $items=$lib->item;
        $wordsLength = sqlserver/42852.htm target=_blank >count($items);
        //获取所有节点的下的节点值
 for($i=0;$i   $word=$items[$i];
  echo $word->word.'-----'.$word->trans.'-----'.$word->phonetic.'
';
 }
 //simplexml结合xpath无所不能
 $words = $lib->xpath("//word");
 //获取属性的方法
 echo $words[0]['add'].'
';
 echo $items[0]['pp'];
?>


相关函数介绍如下:

函数 描述 PHP版本

__construct() 创建一个新的 SimpleXMLElement 对象 5

addAttribute() 给 SimpleXML 元素添加一个属性 5

addChild() 给 SimpleXML 元素添加一个子元素 5

asXML() 从 SimpleXML 元素获取 XML 字符串 5

attributes() 获取 SimpleXML 元素的属性 5

children() 获取指定节点的子节点 5

getDocNamespaces() 获取 XML 文档的命名空间 5

getName() 获取 SimpleXML 元素的名称 5

getNamespaces() 从 XML 数据获取命名空间 5

registerXPathNamespace() 为下一次 XPath 查询创建命名空间语境 5

simplexml_import_dom() 从 DOM 节点获取 SimpleXMLElement 对象 5

simplexml_load_file() 从 XML 文档获取 SimpleXMLElement 对象 5

simplexml_load_string() 从 XML 字符串获取 SimpleXMLElement 对象 5

xpath() 对 XML 数据运行 XPath 查询 5

希望本文所述对大家的PHP程序设计有所帮助。

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