How to create “remember me checkbox” using Codeigniter session library?

Question

in Codeigniter I am building an Authentication system for my web site and to achieve that I use session library

     session->set_userdata(\'username\')
<         


        

Answer 1

I needed the same thing. You cannot accomplish this using CI settings so I have chosen to override the setcookie method of the CI Session class (in MY_Session):

function _set_cookie($cookie_data = NULL)
{
    if (is_null($cookie_data))
    {
        $cookie_data = $this->userdata;
    }

    // Serialize the userdata for the cookie
    $cookie_data = $this->_serialize($cookie_data);

    if ($this->sess_encrypt_cookie == TRUE)
    {
        $cookie_data = $this->CI->encrypt->encode($cookie_data);
    }
    else
    {
        // if encryption is not used, we provide an md5 hash to prevent userside tampering
        $cookie_data = $cookie_data.md5($cookie_data.$this->encryption_key);
    }

    setcookie(
                $this->sess_cookie_name,
                $cookie_data,
                $this->userdata('rememberme') == true ? $this->sess_expiration + time() : 0,
                $this->cookie_path,
                $this->cookie_domain,
                0
            );

}

Of course you need to set the rememberme flag in your session based upon the choice the user made.