PHP登录功能如何编写

          
  
 
 
 
 
 
Ajax PHP Demo System  
 
 
 
 Author:wangming 
 
DateTime:2009-9-1
 
Version:1.0.0
 
Email:wangmingemail@163.com 
 
   
 姓名:wangming
 电商06-2
  
 
 
 
 
 
 
 
 
用户名:
 
 
 
 
 
密 码:
 
 
 
 
 
验证码:
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ©Copyright 2015. 
  

function createRequest() { try { request = new XMLHttpRequest(); } catch (tryMS) { try { request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (otherMS) { try { request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (failed) { request = null; } } } return request; } function getActivatedObject(e) { var obj; if (!e) { // early version of IE obj = window.event.srcElement; } else if (e.srcElement) { // IE 7 or later obj = e.srcElement; } else { // DOM Level 2 browser obj = e.target; } return obj; } function addEventHandler(obj, eventName, handler) { if (document.attachEvent) { obj.attachEvent("on" + eventName, handler); } else if (document.addEventListener) { obj.addEventListener(eventName, handler, false); } }

 5