- substr: documentation ( source)
- hash: documentation ( source)
- hexdec: documentation ( source)
<?php
/*
* Fill in all five below and click blue 'eval();' button below textarea.
*
* ------------------ */
$server_seed_hash = ''; #SHA-256 Server SEED
$server_seed = ''; #Server SEED
$client_seed = ''; #Client SEED
$nonce = ''; #NONCE
/* ------------------ */
if ($server_seed_hash == '' || $server_seed == '' || $client_seed == '' || $nonce == '') exit("Fill in details");
$server_seed_sha256 = hash('sha256', $server_seed);
$hash = hash('sha256', $server_seed.'|'.$client_seed.'|'.$nonce);
$num = hexdec(substr($hash, 0, 8)) % 10000 + 1;
echo "Hash matches: ".($server_seed_hash == $server_seed_sha256 ? 'Yes': 'No')."\n";
echo "Generated number: $num";