实例学习制作xml留言本代码。

复制代码代码如下:

//打开用于存储留言的XML文件
$guestbook = simplexml_load_file('DB/guestbook.xml');

foreach($guestbook->thread as $th) //循环读取XML数据中的每一个thread标签
{
echo "标题：".$th->title."
";
echo "作者：".$th->author."
";
echo "内容：

".$th->content."

";
echo "

";
}
?>

复制代码代码如下:

$guestbook = new DomDocument(); //创建一个新的DOM对象 
$guestbook->load('DB/guestbook.xml'); //读取XML数据 
$threads = $guestbook->documentElement; //获得XML结构的根 
//创建一个新thread节点 
$thread = $guestbook->createElement('thread'); 
$threads->appendChild($thread); 
//在新的thread节点上创建title标签 
$title = $guestbook->createElement('title'); 
$title->appendChild($guestbook->createTextNode($_POST['title'])); 
$thread->appendChild($title); 
//在新的thread节点上创建author标签 
$author = $guestbook->createElement('author'); 
$author->appendChild($guestbook->createTextNode($_POST['author'])); 
$thread->appendChild($author); 
//在新的thread节点上创建content标签 
$content = $guestbook->createElement('content'); 
$content->appendChild($guestbook->createTextNode($_POST['content'])); 
$thread->appendChild($content); 
//将XML数据写入文件 
$fp = fopen("DB/guestbook.xml", "w"); 
if(fwrite($fp, $guestbook->saveXML())) 
echo "留言提交成功"; 
else 
echo "留言提交失败"; 
fclose($fp); 
?> 