Drupal 7 CLI script to logout all users and clear sessions

logout_all_users.php

<?php
  // Bootstrap
  // Change chdir to the full path of your Drupal root
  define('DRUPAL_ROOT', getcwd());
  $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] = $_SERVER['PHP_SELF'];
  $_SERVER['REMOTE_ADDR'] = "127.0.0.1";
  $_SERVER['REQUEST_METHOD'] = NULL;
  require_once './includes/bootstrap.inc';
  drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
    
  $query = db_select('sessions', 's');
  $query->fields('s', array('uid', 'sid'));
  $result = $query->execute();
  while($s = $result->fetch()) {
    $u = user_load($s->uid);
    module_invoke_all('user_logout', $u);
    db_delete('sessions')
      ->condition('sid', $s->sid)
      ->execute();
  }

thank you for sharing