session注销
用户登录+验证码(登录状态检测和注销)
验证码封装
PHP封装验证码
php logout
$_SESSION=[];
if (init_get('session.use_cookies')) {
$params = session_get_cookie_params();
setcookie(session_name, '', time()-1, $params['path'], $params['domain'], $params['secure'], $params['httponly']);
}
session_destroy();
header('location:login.php');
PHP验证码