探讨如何使用SimpleXML函数来加载和解析XML文档

大量SmipleXML函数可用来加载和解析大量XML文档。
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1.simpleXML_load_file()函数来加载指定的XML文件到对象。如果加载文件时遇到问题，则返回FLASE。例：
book.xml文件：

复制代码 代码如下:

 
  
  Jane Austen
  Jane Austen's most popular work.
 
 
  
  Alberto Moravia
  Alberto Moravia's classic psyhcological novel.
 
 
  
  Ernest Hemingway
  The masterpiece that launched Hemingway's career.
 

php文件：

复制代码 代码如下:

$xml=simplexml_load_file("book.xml");echo "

";<br>var_dump($xml);<br>?><br><br>输出结果：<br><p class="codetitle"><span style="CURSOR: pointer" onclick="doCopy('code2415')"><u>复制代码</u></span> 代码如下:</p><p class="codebody" id="code2415"><br>object(SimpleXMLElement)#1 (1) {<br>  ["book"]=><br>  array(3) {<br>    [0]=><br>    object(SimpleXMLElement)#2 (3) {<br>      ["title"]=><br>      string(19) "Pride and Prejudice"<br>      ["author"]=><br>      string(11) "Jane Austen"<br>      ["description"]=><br>      string(32) "Jane Austen's most popular work."<br>    }<br>    [1]=><br>    object(SimpleXMLElement)#3 (3) {<br>      ["title"]=><br>      string(14) "The Conformist"<br>      ["author"]=><br>      string(15) "Alberto Moravia"<br>      ["description"]=><br>      string(46) "Alberto Moravia's classic psyhcological novel."<br>    }<br>    [2]=><br>    object(SimpleXMLElement)#4 (3) {<br>      ["title"]=><br>      string(18) "The Sun Also Rises"<br>      ["author"]=><br>      string(16) "Ernest Hemingway"<br>      ["description"]=><br>      string(49) "The masterpiece that launched Hemingway's career."<br>    }<br>  }<br>}<br></p><br>