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Home Backend Development PHP Tutorial 求教同一个站点两个域名怎么实现同步登陆

求教同一个站点两个域名怎么实现同步登陆

Jun 23, 2016 pm 02:21 PM

我只有一个网站,但是绑定了两个域名www.a.com和www.b.com,两个域名都指向网站的顶级目录index.php,使用www.a.com登陆了之后,再去访问www.b.com的时候依然是未登录状态。我想实现用户登陆了a之后,访问b也是登陆的状态,请问如何做到?

注:请不要跟我谈UCenter,我只有一个站,没有论坛等乱七八糟的,我只想跨域共享session或者cookie,求有经验的前辈指点一条明路,节省我走弯路的时间。


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搜  SSO 单点登录。

session不可以吗

只能跨二级域名,这个问题不谈了,现在又在思考JS跨域刷新主页面的问题

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session不可以吗

很遗憾  cookie不能跨域,sessionid无法共享,session内容就无法共享了。。。
若是同域的就好解决了。。。

好想session和cookie不能实现你那个功能吧!

应该跟session的跨域有关。。。。。既然默认的session不能跨域共享那你何不修改下session,用数据库来存储呢?重写session

如果是同一级子域名
www.a.com,admin.a.com,可以通过设置 setcookie的 第四个参数 domain 就可以了,cookie 通了 保存的 sessionid 也就通了,

但你这个是两个不同的域名,
可以使用数据库存储session的方式,把session存入数据库,用的时候在从数据库取出来,当然这有个弊端就是用户量大的时候要频繁的操作数据库,压力不小,不过没关系,你可以使用缓存memcache,
用 数据库+缓存(memcache)的方式存解决session跨域问题(其实已经不是session了),

不知道我所说的有用不...

楼上讲得都很好,慢慢尝试

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