探讨如何使用SimpleXML函数来加载和解析XML文档_PHP

大量SmipleXML函数可用来加载和解析大量XML文档。
--------------------------------------------------------------------------------
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."
    }
  }
}