一.使用DOM生成和读取XML文件
实例一:
复制代码 代码如下:
<?php
//Creates XML string and XML document using the DOM
$dom = new DomDocument('1.0');
//add root - <books>
$books = $dom->appendChild($dom->createElement_x_x ('books'));
//add <book> element to <books>
$book = $books->appendChild($dom->createElement_x_x ('book'));
//add <title> element to <book>
$title = $book->appendChild($dom->createElement_x_x ('title'));
//add <title> text node element to <title>
$title->appendChild($dom->createTextNode('Great American Novel'));
//generate xml
$dom->formatOutput = true; // set the formatOutput attribute of domDocument to true
//save XML as string or file
$test1 = $dom->saveXML(); // put string in test1
$dom -> save('test1.xml'); // save as file
?>

实例二:
复制代码 代码如下:
$aa = "111";
$xmlstr = <<<XML
<?xml version='1.0'?>
<document>
<title>{$aa}</title>
<from>Joe</from>
<to>Jane</to>
<body>
I know that's the answer -- but what's the question?
</body>
</document>
XML;
$dom = new domDocument;
$dom->loadXML($xmlstr);
$test1 = $dom->saveXML();
$dom->save('test1.xml');


实例三:
test1.xml:
复制代码 代码如下:
<?xml version="1.0"?>
<books>
<book>
<author>Jack Herrington</author>
<title>PHP Hacks</title>
<publisher>O'Reilly</publisher>
</book>
<book>
<author>Jack Herrington</author>
<title>Podcasting Hacks</title>
<publisher>O'Reilly</publisher>
</book>
</books>


example.php:
复制代码 代码如下:
$doc = new DOMDocument();
$doc->load('test1.xml');
$books = $doc->getElementsByTagName("book");
foreach($books as $book){
$authors = $book->getElementsByTagName("author");
$author = $authors->item(0)->nodeValue;
$publishers = $book->getElementsByTagName( "publisher" );
$publisher = $publishers->item(0)->nodeValue;
$titles = $book->getElementsByTagName( "title" );
$title = $titles->item(0)->nodeValue;
echo "$title - $author - $publisher\n";
}


二.使用simple生成和读取xml文件
实例一:
复制代码 代码如下:
<?
$xmlstr = <<<XML
<?xml version='1.0' standalone='yes'?>
<books>
<book>
<title>Great American Novel</title>
<characters>
<character>
<name>Cliff</name>
<desc>really great guy</desc>
</character>
<character>
<name>Lovely Woman</name>
<desc>matchless beauty</desc>
</character>
<character>
<name>Loyal Dog</name>
<desc>sleepy</desc>
</character>
</characters>
<plot>
Cliff meets Lovely Woman. Loyal Dog sleeps, but wakes up to bark
at mailman.
</plot>
<success type='bestseller'>4</success>
<success type='bookclubs'>9</success>
</book>
</books>
XML;

//提取节点内容
$xml = new SimpleXMLElement($xmlstr);
foreach ($xml->book[0]->success as $success) {
switch((string) $success['type']) { // Get attributes as element indices
case 'bestseller':
echo $success. ' months on bestseller list<br>';
break;
case 'bookclubs':
echo $success. ' bookclub listings';
break;
}
}

//修改文本节点内容
$xml = new SimpleXMLElement($xmlstr);
$xml->book[0]->characters->character[0]->name = 'Big Cliff';
echo $xml->asXML();

//添加子元素的文本节点
$xml = new SimpleXMLElement($xmlstr);
$character = $xml->book[0]->characters->addChild('character');
$character->addChild('name', 'Yellow Cat');
$character->addChild('desc', 'aloof');
$success = $xml->book[0]->addChild('success', '2');
$success->addAttribute('type', 'reprints');
echo $xml->asXML();

?>


实例二:
复制代码 代码如下:
if (file_exists('test1.xml')) { //读取xml文件
$xml = simplexml_load_file('test1.xml');
var_dump(xml);
} else {
exit('Failed to open test1.xml.');
}


三.DOM和simple互操作
DOM导入simpleXML:
复制代码 代码如下:
<?php
$sxe = simplexml_load_string('<books><book><title>Great American
Novel</title></book></books>');
if ($sxe === false) {
echo 'Error while parsing the document';
exit;
}
$dom_sxe = dom_import_simplexml($sxe);
if (!$dom_sxe) {
echo 'Error while converting XML';
exit;
}
$dom = new DOMDocument('1.0');
$dom_sxe = $dom->importNode($dom_sxe, true);
$dom_sxe = $dom->appendChild($dom_sxe);
$test2 = $dom->saveXML(); // put string in test2
$dom -> save('test2.xml'); // save as file
?>


simpleXML导入DOM:
复制代码 代码如下:
<?php
$dom = new domDocument;
$dom->loadXML('<books><book><title>Great American
Novel</title></book></books>');
if (!$dom) {
echo 'Error while parsing the document';
exit;
}
$s = simplexml_import_dom($dom);
echo $s->book[0]->title; // Great American Novel
?>
标签:
编写XML,读取XML

免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
桃源资源网 Design By www.nqtax.com

评论“用PHP编写和读取XML的几种方式”

暂无“用PHP编写和读取XML的几种方式”评论...

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?