Cleaning remove delete SSO CAS session apereo/mod_auth_cas PHP

cas_logout.php

<?php
// Cleaning CAS session apereo/mod_auth_cas (https://github.com/apereo/mod_auth_cas)
// Sarting session
session_start();


if ((!isset($_SERVER["PHP_AUTH_USER"])) || (!empty($_SERVER["PHP_AUTH_USER"]))) {
    // Get username
    $login = $_SERVER["PHP_AUTH_USER"];
    // Select your Folder ( set by CASCookiePath /var/cache/apache2/mod_auth_cas/ )
    $sessionFolder = "/var/cache/apache2/mod_auth_cas/";
    $exec = shell_exec("cd $sessionFolder ; grep -l $login * | xargs rm");

    // Cleanup
    $_SESSION = array();

    // On détruit les variables de notre session
    session_unset();

    // On détruit notre session
    session_destroy();
}

header("location:https://sso.irit.fr/cas/logout"); //Redirect vers le CAS
exit();