Can't the php file get the value in the session of another php file? What's going on?

Question

session 安全内容

session_start();

$yb_userid = $_SESSION['yb_userid'];

var_dump($yb_userid) ;

Answer 1

Is the session enabled on another page, or is there a typo...

Answer 2

Can you get your settings?

Answer 3

$a = session(''); Try this