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Homephp教程php手册cookie的有效期,不能通常执行,请高手看一下

cookie的有效期,不能正常执行,请高手看一下 文件目录结构登陆界面与主文件在根目录,其它文件在main文件夹中, $name="张三"; setcookie("F_user",$name,,time()+900); print_r($_COOKIE);可以正常得到F_user张三 但运行中,发现不到900秒就退出了。 后来百

cookie的有效期,不能正常执行,请高手看一下
文件目录结构   登陆界面与主文件在根目录,其它文件在 main文件夹中,
$name="张三";
setcookie("F_user",$name,,time()+900);

print_r($_COOKIE);  可以正常得到 F_user>张三

但运行中,发现不到900秒就退出了。

后来百度 查到 应该cookie中加上路径 ,于是改为

setcookie("F_user",$name,,time()+900,"/");

可这样以来,print_r($_COOKIE【本文来自鸿网互联 (http://www.68idc.cn)】); 得到 F_user> 空, 根本得不到cookie值,导致无法登陆

请问是哪里的问题,该如何处理?
------解决思路----------------------
查看下浏览器的cookie选项里有没有F_user
------解决思路----------------------
我测试没有问题
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