Online PHP editor | refs for ucOJH

<?php /* * Fill in all five below and click blue 'Something is wrong();' button below textarea. * * ------------------ */ $hash = ''; #Round number hash SHA256 $secret = ''; #Round number $number = ''; #Round number $tickets = ''; #Round total tickets /* ------------------ */ if ($hash == '' || $secret == '' || $number == ''|| $tickets == '') exit("Fill in details"); $sha256 = hash('sha256', $number.'|'.$secret); $ticket = ceil(intval($tickets)*floatval($number)); echo "Hash matches: ".($hash == $sha256 ? 'Yes': 'No')."\n"; echo "Winning ticket: ".$ticket."\n";