You just need to add your filter hook like this: function myplugin_cookie_expiration( $expiration, $user_id, $remember ) { return $remember ? $expiration : 600; } add_filter( ‘auth_cookie_expiration’, ‘myplugin_cookie_expiration’, 99, 3 ); You can add it to your theme’s functions.php file.
This happens because you are missing the neccessary nonce in the URL, which is being checked in wp-login.php case ‘logout’ : check_admin_referer(‘log-out’); … Use wp_logout_url in order to retreive the URL including the nonce. If you want to redirect to a custom URL, simply pass it as an argument. <a href=”https://wordpress.stackexchange.com/questions/67336/<?php echo wp_logout_url(“/redirect/url/goes/here’) ?>”>Log out</a> … Read more
Instead of a button, put a link and navigate it to another page Then in logout.php page, use