PHP输入XML到页面的3种体例详解

第一种体例：
复制代码 代码以下:
<?php
header("Content-type: text/xml");
echo "<?xml version=/"1.0/" encoding=/"UTF-8/"?>";
echo "<users>";
echo "<user>";
   echo "<name>";
    echo "小小菜鸟";
   echo "</name>";
   echo "<age>";
    echo "24";
   echo "</age>";
   echo "<sex>";
    echo "男";
   echo "</sex>";
echo "</user>";
echo "<user>";
   echo "<name>";
    echo "艳艳";
   echo "</name>";
   echo "<age>";
    echo "23";
   echo "</age>";
   echo "<sex>";
    echo "女";
   echo "</sex>";
echo "</user>";
echo "</users>";
?>

第二种体例：
复制代码 代码以下:
<?php
header("Content-type: text/xml");
echo "<?xml version=/"1.0/" encoding=/"UTF-8/"?>";
echo "<users><user><name>小小菜鸟</name><age>24</age><sex>男</sex></user><user><name>艳艳</name><age>23</age><sex>女</sex></user></users>";
?>

第三种体例：
复制代码 代码以下:
<?php
/*
用PHP的DOM控件来成立XML输入
设置输入内容的范例为xml
*/
header("Content-Type: text/xml;");
//成立新的xml文件
$dom = new DOMDocument("1.0", "utf-8");

//成立<response>元素
$response = $dom->createElement("response");
$dom->appendChild($response);

//成立<books>元素并将其作为<response>的子元素
$books = $dom->createElement("books");
$response->appendChild($books);

//为book成立标题
$title = $dom->createElement("title");
$titleText = $dom->createTextNode("PHP与AJAX");
$title->appendChild($titleText);

//为book成立isbn元素
$isbn = $dom->createElement("isbn");
$isbnText = $dom->createTextNode("1-21258986");
$isbn->appendChild($isbnText);

//成立book元素
$book = $dom->createElement("book");
$book->appendChild($title);
$book->appendChild($isbn);

//将<book>作为<books>子元素
$books->appendChild($book);

//在一字符串变量中成立XML规划
$xmlString = $dom->saveXML();

//输入XML字符串
echo $xmlString;

?>