How do check if a PHP session is empty?

Question

Is this bad practice?

if ($_SESSION[\'something\'] == \'\')
{
    echo \'the session is empty\';
}

Is there a way to check if its empty or

Answer 1

I know this is old, but I ran into an issue where I was running a function after checking if there was a session. It would throw an error everytime I tried loading the page after logging out, still worked just logged an error page. Make sure you use exit(); if you are running into the same problem.

     function sessionexists(){
        if(!empty($_SESSION)){
     return true;
         }else{
     return false;
         }
      }


        if (!sessionexists()){
           redirect("https://www.yoursite.com/");
           exit();
           }else{call_user_func('check_the_page');
         }