I have an error in server session and can’t resolve it

when i click logout and page return to login again this line is be in display :

Warning: session_start(): open(C:xampp8tmpsess_16k7kmv1kt181nv4eq17idhirg, O_RDWR) failed: Permission denied (13) in C:xampp8htdocsexample.comcrminit.php on line 8

Warning: session_start(): Failed to read session data: files (path: C:xampp8tmp) in C:xampp8htdocsexample.comcrminit.php on line 8

---

logout page >>>>>>

<?php
include "init.php" ; //include init
session_start();
session_unset();
session_destroy();
header('Location: /');
exit();
?>

---

init page >>>

<?php
//======================================================================================
//============================== session AND DB DASHBORD ===============================
//======================================================================================
//connect to database 
include "db.php";
//session start
session_start();

Answer

you must use session_regenerate_id() before of session_start();

for more information read this link: session_destroy