php+xml结合Ajax实现点赞功能完整实例
这篇文章主要介绍了php+xml结合Ajax实现点赞功能的方法,以一个完整实例形式详细分析了XML文件、html页面以及Ajax结合php实现点赞功能的技巧,非常具有实用价值,需
本文实例讲述了php+xml结合Ajax实现点赞功能的方法。分享给大家供大家参考。具体如下:
使用xml、php和Ajax实现点赞功能,不需要链接数据库,使用php来修改xml的内容,使用Ajax直接或许xml的内容。
一、准备好xml:
其中ID只是用来看清楚排序的,,没有实际的调用作用。
二、准备好HTML
三、JAVASCRIPT 包括Ajax在内,还添加了判断cookie的功能
var span = document.getElementsByTagName('span'); var num; var flag = 0; for(var i = 1; i 0){ //当cookie不为空的时候就开始查找名称 c_start = document.cookie.indexOf(c_name + "="); if (c_start != -1){ //如果开始的位置不为-1就是找到了、找到了之后就要确定结束的位置 c_start = c_start + c_name.length + 1 ; //cookie的值存在名称和等号的后面,所以内容的开始位置应该是加上长度和1 c_end = document.cookie.indexOf(";" , c_start); if (c_end == -1) { c_end = document.cookie.length; } return unescape(document.cookie.substring(c_start , c_end)); //返回内容,解码。 } } return ""; } //设置cookie function setCookie(c_name,value,expiredays){ //存入名称,值,有效期。有效期到期事件是今天+有效天数。然后存储cookie, var exdate=new Date(); exdate.setDate( exdate.getDate() + expiredays ) document.cookie = c_name + "=" + escape(value) + ((expiredays==null) ? "" : "; expires=" + exdate.toGMTString()) }
四、通过php来修改xml的数据,一开始调用xml的数据的时候不需要php文件。
load('index.xml'); $goodnode=$dom->getElementsByTagName('goodnode'); $goodnode = $goodnode->item($aindex); $items = $goodnode->getElementsByTagName('count'); foreach($items as $a){ $a->nodeValue = $_GET['num']; } $dom->save('index.xml'); ?>
完成。
希望本文所述对大家的php程序设计有所帮助。

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