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HomeBackend DevelopmentPHP Tutorialphp出现web系统多域名登录失败的解决方法_php技巧

本文实例讲述了php出现web系统多域名登录失败的解决方法,分享给大家供大家参考。具体分析如下:

下面只是简单的逻辑结构,对于正式的系统需要做具体的处理。

这里需要注意的是:加解密一定需要做安全验证。但是这个方法也不够完美,两个站点必须有相同一级域名;另外这种完全基于cookie的方式,安全性不够高

function login()
{
  $info = callloginserver(); //访问登录服务器
  if(!empty($info))  //登录成功了
}
//用户没有登录,则在本系统中登录并调用登录服务器接口
function login()  //正常的登录
{
  .......//验证用户的合法性
  $_session['uid'] = $user_id;
  setcookie('sign', encrypt($pass9), '', '/', 'the.com');
}

先检查用户是否在登录系统中登录

funtion sign()
{
 $sign = $_cookie['sign'];
 if(!empty($sign))
 {
   $sign = decrypt($sign);
  ..........///登录成功
 }
}

用户没有登录,则在本系统中登录并调用登录服务器接口

function loging() //本系统登录
{ 
 .....//登录成功
 callseverlogin();//通知用户登录
}

所有的站点共享一个登录系统;当用户在其中的一个站点登录成功时, 该系统调用其他站点的登录接口,完成用户在其他站点的登录,同时设置相应的登录信息;或者在用户登录时,只在该系统保存用户登录信息,当用户在其他站点登录时,必须请求该系统接口,获取用户是否登录的信息。前一种方式的缺点是:不管用户有没有使用其他站点,那些站点都需要保存用户状态;后一种方式就把所有的压力都转移到登录系统上面来。而如果要实现用户退出的统一操作,就需要站点调用登录系统的退出接口,然后登录系统接口调用其他站点的退出接口;或者设置一个标记,如果这个标记不存在则标示用户退出,此时只要把该标示清空即可,其他站点发现该标示不存在就知道用户已经退出系统。

这种处理方式需要在登录系统和个站点之间规定登录接口,和注销接口。通过这些接口,各站点可以很方便的处理用户登录或退出。

希望本文所述对大家的PHP程序设计有所帮助。

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