问登录系统HTML，PHP，MySQL后是否必须为已标记的用户创建第二页面？

EN

... existing page content ...

if($_SESSION['LoggedIn']){
    ... add content for logged in users
}

... existing page content ...

$_SESSION['LoggedIn'] = true;

$_SESSION['UserToken'] = 'aabbcc'; //Use a valid identifier to find the user in your database

$SecurityLevel = 5;
if(userHasAccess($_SESSION['UserToken'], $SecurityLevel)){
    ... add content for logged in user ...
}

 function userHasAccess($UserToken, $SecurityLevel){
      //Look up user token in DB to get user details

      //Perform some logic to determine if the user should have access to this resource, based on the security level

      //Return true if they are allowed

      //Return false if they are not allowed
 }