How to make a captcha that appears once an hour ?? Bind by IP?

Question

Joomla

Hello! There is a Freebitco.in site where a button is available to registered users, after clicking which you need to enter a captcha and get the result ... binding by IP..., the button becomes available again... Tell me how to do the same?? Site on Joomla. Thank you all very much.

Answer 1

Create a field with a new type and inherit from JFormRuleCaptcha and override the getInput() method

$user = JFactory::getUser();

$time = $user->getParam('timeShowCaptcha', 0);

if((time() - $time) < 3600){
  return '';
}

$user->setParam('timeShowCaptcha', time());
$user->save();