'img_path' => './captcha/',
'img_url' => base_url().'captcha/'
);
$captcha = create_captcha($attr);
#captchat created
$this->captcha->_insert($captcha['time'], $this->input->ip_address(), $captcha['word']);
#insert captcha attr to database already
print_r($captcha);
echo '<br>';
echo time()-7200;
#นี่คือปัญหา
