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php读取不已cookie

WBOY
Release: 2016-06-13 12:33:13
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php读取不了cookie
做一个登录界面,自动记忆用户名的功能

if(empty($_POST['chkRemember'])) {
       //用户没有选择单选框
         if(!empty($_COOKIE['username'])){
            setcookie('username','',time()-100);
         }
      }else{
       //用户选择单选框
       setcookie('username',$username,time()+7*24*3600);
      }

当用户选了记住用户名的单选框时,COOKIE已经保存,在C:\Users\Administrator\AppData\Roaming\Microsoft\Windows\Cookies菜单下多了一个COOKIE文件(administrator@localhost[1].txt),内容也是正确的

但是读取COOKIE却不成功,每次都是返回控制
' />

  function GetCookieVal($key){
  if(empty($_COOKIE[$key])){
     return "none";
  }else{
  return $_COOKIE[$key];
  }
}
?>

直接打印COOKIE数组   print_r($_COOKIE);
得到的也是空数组


求教这是怎么回事?
是不是COOKIE保存路径和读取路径不一致?

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