php读取xml列表程序

php读了xml很方便的,我们下面用dom与php自带的xml_parser来实例吧,我们先看看wk.xml 文件,其实这里是blogbus的rss文件,代码如下:

<?xml version="1.0" encoding="gb2312" 
	<rss version="2.0"> 
	 <channel> 
	  <title>mikeowen</title> 
	  <link>http://mikeowen.blogbus.com</link> 
	  <description><![CDATA[Design]]></description> 
	  <generator> by blogbus.com </generator> 
	  <lastBuildDate>Tue, 30 Jan 2007 13:46:52 +0800</lastBuildDate> 
	  <image> 
	         <url>http://public.blogbus.com/images/head.gif</url> 
	         <title>mikeowen</title> 
	         <link>http://mikeowen.blogbus.com</link> 
	        </image>  
	<item> 
	   <title>vanke</title> 
	   <description>tff</description> 
	   <link>http://mikeowen.blogbus.com/logs/28560579.html</link> 
	   <author>mikeowen</author> 
	   <pubDate>Fri, 05 Sep 2008 12:41:22 +0800</pubDate> 
	  </item> 
	  <item> 
	   <title>something3</title> 
	   <description>eee</description> 
	   <link>http://mikeowen.blogbus.com/logs/23972142.html</link> 
	   <author>mikeowen</author> 
	   <pubDate>Wed, 02 Jul 2008 12:26:40 +0800</pubDate> 
	  </item>  
	 </channel> 
	</rss> 

这是我一个同事的博客rss文件我取下来作实例了吧,下面我们来看看解析xml的方法用dom来做,实例代码如下:

<?php 
	  $doc = new DOMDocument(); 
	  $doc->load( &#39;wk.xml&#39; ); 
	   
	  $books = $doc->getElementsByTagName( "item" ); 
	  foreach( $books as $book ) 
	  { 
	  $authors = $book->getElementsByTagName( "title" ); 
	  $author = $authors->item(0)->nodeValue; 
	   
	  $publishers = $book->getElementsByTagName( "link" ); 
	  $publisher = $publishers->item(0)->nodeValue; 
	   
	  $titles = $book->getElementsByTagName( "pubDate" ); 
	  $title = $titles->item(0)->nodeValue; 
	   
	  echo "$title - $author - $publishern"; 
	  } 
	//开源代码phprm.com 
	 

简单吧,直接读取节点然后再取当前第一个节点的值就行了,好了下面我们再看看一种方法用php自然的,代码如下:

<?php   
	  $g_books = array(); 
	  $g_elem = null; 
	   
	  function startElement( $parser, $name, $attrs )  
	  { 
	  global $g_books, $g_elem; 
	  if ( $name == &#39;item&#39; ) $g_books []= array(); 
	  $g_elem = $name; 
	  } 
	   
	  function endElement( $parser, $name )  
	  { 
	  global $g_elem; 
	  $g_elem = null; 
	  } 
	   
	  function textData( $parser, $text ) 
	  { 
	  global $g_books, $g_elem; 
	  if ( $g_elem == &#39;link&#39; || 
	  $g_elem == &#39;pubDate&#39; || 
	  $g_elem == &#39;title&#39; ) 
	  { 
	  $g_books[ count( $g_books ) - 1 ][ $g_elem ] = $text; 
	  } 
	  } 
	   
	  $parser = xml_parser_create(); 
	   
	  xml_set_element_handler( $parser, "startElement", "endElement" ); 
	   
	  xml_set_character_data_handler( $parser, "textData" ); 
	   
	  $f = fopen( &#39;wk.xml&#39;, &#39;r&#39; );   
	   
	  while( $data = fread( $f, 4096 ) ) 
	  { 
	  xml_parse( $parser, $data ); 
	  } 
	   
	  xml_parser_free( $parser ); 
	   
	  foreach( $g_books as $book ) 
	  { 
	  echo $book[&#39;title&#39;]." - ".$book[&#39;link&#39;]." - "; 
	  echo $book[&#39;pubDate&#39;]."n"; 
	  } 
	   

这种代码多一点,单效率要比上面那个高很多的.

文章链接：

随便收藏，请保留本文地址！