setcookie函数的作用域问题
- 2008-03-21
- 分类：PHP&MySql
- 作者：银子
- 293 次查看
在不同目录下的文件.不能访问各自设置的cookie
查了一下手册.setcookie函数有一个path参数.可以设置本地cookie的作用域
解释如下：
The path on the server in which the cookie will be available on. If set to ‘/’, the cookie will be available within the entire domain . If set to ‘/foo/’, the cookie will only be available within the /foo/ directory and all sub-directories such as /foo/bar/ of domain . The default value is the current directory that the cookie is being set in.
另一个参数domain
则是设置网络上cookie的作用域.
解释如下:
The domain that the cookie is available. To make the cookie available on all subdomains of example.com then you’d set it to ‘.example.com’. The . is not required but makes it compatible with more browsers. Setting it to www.example.com will make the cookie only available in the www subdomain. Refer to tail matching in the » spec for details.
示例:
- $setcookday = 30;//设置cookie有效期
- setcookie('uname', '银子', time() + ($setcookday * 24 * 60 * 60),'/','qqdang.net'); //分别为cookie名称.cookie值.cookie有效时间.cookie本地作用域.cookie网络作用域
