Online PHP editor | rfc for P9Qir

@ 2019-12-08T21:36:50Z

<?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 stringToInt32($seed)
{
    $groups = str_split((string)$seed, 4);
    $groups = array_map(function ($g) {
        return unpack('C*', $g);
    }, $groups);
    $groups = array_filter($groups, function ($g) {
        return count($g) === 4;
    });

    $result = array_map(function ($group) {
        return array_reduce($group, function ($acc, $cur) {
            return ($acc << 4) | $cur;
        }, 0);
    }, $groups);

    return array_reduce($result, function ($acc, $cur) {
        return ($acc ^ $cur);
    }, 0);
}

$serverSeedInt = stringToInt32($unhashedServerSeed);
$clientSeedInt = stringToInt32($clientSeed);
$seed = $serverSeedInt ^ $clientSeedInt ^ (int)$caseNumber ^ (int)$nonce;
mt_srand($seed, MT_RAND_MT19937);

$result = mt_rand(1, $qty);

echo "Seed: $seed\n";
echo "Result: $result";

Output for git.master, git.master_jit: Warning: Module "Zend OPcache" is already loaded in Unknown on line 0 Warning: Zend OPcache: module registration failed! in Unknown on line 0 Fill in details
Output for rfc.property-hooks: Fill in details

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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