$salt = token(9));
function token($length = 32) {
    // Create random token
    $string = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
    
    $max = strlen($string) - 1;
    
    $token = '';
    
    for ($i = 0; $i < $length; $i++) {
        $token .= $string[mt_rand(0, $max)];
    }    
    
    return $token;
}

password = '" . $this->db->escape(sha1($salt . sha1($salt . sha1($data['password']))))