session_destroy() cannot take effect immediately, how to solve it

session_destroy() cannot take effect immediately
When linking to a PHP page in HTML, the PHP page will destroy the session, but when the page is opened, the session still exists. Only by refreshing the PHP page again can the session be destroyed. There are only two statements on this page: $_SESSION = array(); session_destroy(); session_start() has been enabled.
What is the situation

——Solution—————– —
When you execute session_destroy(); in page B, the previous session naturally exists, otherwise there is no need to use session_destroy();
You are only re-entering page B (such as refreshing ) will find that the session is gone
Because to the user, session_destroy() only sends the instruction to log out the sessionid in COOKIE
——Solution- ——————
a.php

<?php  
session_start();
$_SESSION['name'] = "kobe";
?>
se2

>b.php

<?php
session_start();
$_SESSION = array();
session_destroy(  );
var_dump($_SESSION['name']);
?>

——Solution Scheme——————–

Your page has not ended, and the session of the current page has not been updated to the file. This is why session_destroy() does not take effect immediately.
Add session_write_close(); after session_destroy(); to solve this problem.