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 "

"; 
  
var_dump($xml); 
  
?> 
  
 
 

输出结果：

复制代码 代码如下:

object(SimpleXMLElement)#1 (1) {
  ["book"]=>
  array(3) {
    [0]=>
    object(SimpleXMLElement)#2 (3) {
      ["title"]=>
      string(19) "Pride and Prejudice"
      ["author"]=>
      string(11) "Jane Austen"
      ["description"]=>
      string(32) "Jane Austen's most popular work."
    }
    [1]=>
    object(SimpleXMLElement)#3 (3) {
      ["title"]=>
      string(14) "The Conformist"
      ["author"]=>
      string(15) "Alberto Moravia"
      ["description"]=>
      string(46) "Alberto Moravia's classic psyhcological novel."
    }
    [2]=>
    object(SimpleXMLElement)#4 (3) {
      ["title"]=>
      string(18) "The Sun Also Rises"
      ["author"]=>
      string(16) "Ernest Hemingway"
      ["description"]=>
      string(49) "The masterpiece that launched Hemingway's career."
    }
  }
}