<?php function roll($seed, $key, $nonce) { $key = "your client seed"; // excluding the dash and the nonce! $seed = "your server seed"; // bet made with seed pair (excluding current bet) $nonce = 0; $hash = hash_hmac('sha512', $key . '-' . $nonce, $seed); $index = 0; $lucky = hexdec(substr($hash, $index * 5, 5)); while ($lucky >= pow(10, 6)) { $index++; $lucky = hexdec(substr($hash, $index * 5, 5)); if ($index * 5 + 5 > 128) { return '99.99'; break; } } $lucky %= pow(10, 4); $lucky = sprintf('%.2f', bcdiv($lucky, '100', 2)); return $lucky; } echo roll('bla','blah',2); ?>
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