Arefly

Redirect the user who have already login from login.php to Admin Panel.
將已經登陸的用戶從登陸頁面跳轉至控制台

No Repeat Login

Redirect the user who have already login from login.php to Admin Panel. 將已經登陸的用戶從登陸頁面跳轉至控制台

cavimaster

Make a private category (with login-logout) 
A login will then appear on the selected category page . 
Put in this category all posts that should be private not forget to change the status to private. 
Users must identify themselves to gain access to content
Options: active/desactive privacy || choose category || subscriber can/cant read private posts&pages
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Private categories

Making private category (with login-logout)

No Repeat Login vs Private categories