Online PHP editor | refs for urEYG

<?php /* * Fill in all five below and click blue 'eval();' button below textarea. * * ------------------ */ $caseNumber = -1; $unhashedServerSeed = ''; $nonce = -1; $clientSeed = ''; $qty = -1; /* ------------------ */ if ($caseNumber < 0 || $unhashedServerSeed == '' || $nonce < 0 || $clientSeed == '' || $qty < 0) { echo "Fill in details"; return; } $unhashedServerSeed = preg_replace( "/\r|\n/", "", $unhashedServerSeed ); $clientSeed = preg_replace( "/\r|\n/", "", $clientSeed ); function calculatePreResult($init, $depth, $numIterations = 0, $hash = null) { if ($numIterations === $depth) { return $hash; } if ($numIterations === 0) { $hash = $init; } return calculatePreResult($init, $depth, $numIterations + 1, hash('sha256', $hash)); } $preResult = calculatePreResult("$unhashedServerSeed-$clientSeed-$caseNumber-$nonce", 1000); $preResultAsInt = hexdec(substr(bin2hex($preResult), 0, 8)); $result = ($preResultAsInt % $qty) + 1; echo "Pre-Result: $preResult / $preResultAsInt\n"; echo "Result: $result";