Create chmod number notation

chmod_number.php

<?php

/**
 * Copyright @ 2016 by Nimit Suwannagate <[email protected]>. All rights reserved.
 */

// Run this file in cli mode for best view.

// Try to edit this one.
$maxNumber = 500000000000;

// DON'T EDIT ANYTHINGS AFTER THIS LINE

$number = 0;
$numberChunk = [];
$lastNumber = 1;
$countLoop = 0;

$start = microtime(true);
while ($number <= $maxNumber) {
    $sumCurrent = array_sum($numberChunk);

    if ($sumCurrent != $number) {
        $number += $lastNumber;
        $lastNumber = $number;
    }

    $number++;
    $numberChunk[] = $number;
    $countLoop++;
}

if (isset($_SERVER['HTTP_HOST'])) {
    echo "<pre>";
}
echo "Result: \n";

$octColLabel = "Octal value";
$binColLabel = "Binary value";

$octColWidth = max(strlen(max($numberChunk)), strlen($octColLabel));
$binColWidth = max($countLoop, strlen($binColLabel));

$header = "| " . str_pad($octColLabel, $octColWidth, ' ', STR_PAD_BOTH)
       . " | " . str_pad("Binary value", $binColWidth, ' ', STR_PAD_BOTH) . " |";
$line = str_repeat("-", strlen($header));

echo $line . "\n";
echo $header . "\n";
echo $line . "\n";
foreach($numberChunk as $number) {
    echo "| " . str_pad($number, $octColWidth, ' ', STR_PAD_LEFT) . " | ". str_pad(base_convert($number, 10, 2), $binColWidth, ' ', STR_PAD_LEFT) . " |\n";
}
echo $line . "\n";
echo "Looped: " . ($countLoop) . "\n";
echo "Total member: " . count($numberChunk) . "\n";
echo "Time usaged: " . (microtime(true) - $start) . "\n";
if (isset($_SERVER['HTTP_HOST'])) {
    echo "</pre>";
}

example_generate_game_item.php

<?php

/**
 * Copyright @ 2016 by Nimit Suwannagate <[email protected]>. All rights reserved.
 */

// Run this file in cli mode for best view.
// This one is demo in case generate rare item from number.

// Try to edit this one.
$attributes = [
    '+1 STR',
    '+1 DEF',
    '+1 INT',
    '+1 LUK',
    '+10 STR',
    '+10 DEF',
    '+10 INT',
    '+10 LUK',
    'RANDOM REMOVE STATUSES',
    'PROTECT ALL STATUSES',
    'AUTO GENERATE HP',
    'AUTO GENERATE MP',
];

// DON'T EDIT ANYTHINGS AFTER THIS LINE

// CORE LOGIC FOR GENERATE BASE NUMBER
// From another file. I create this generator

/**
 * [GENERATOR] Create number notation
 * @param  int $count
 * @return Generator
 */
function numberNotationGenerator($count)
{
    if (! is_numeric($count)){
        throw new Exception("Count is not numeric");
    }

    $number = 0;
    $numberChunk = [];
    $lastNumber = 1;
    while (true) {
        $sumCurrent = array_sum($numberChunk);

        if ($sumCurrent != $number) {
            $number += $lastNumber;
            $lastNumber = $number;
        }

        $number++;
        $numberChunk[] = $number;
        yield $number;
        if ($count == count($numberChunk)){
            break;
        }
    }
}

// CREATE AS ITEM ATTRIBUTES
$generator = numberNotationGenerator(count($attributes));
$itemAttributes = [];
foreach ($generator as $index => $value) {
    $itemAttributes[$value] = $attributes[$index];
}

$maximumPossible = array_sum(array_keys($itemAttributes));


// TRY GENERATE ITEM WITH RANDOM.
// MORE NUMBER IS MORE RARE ITEM!!

// Simple random!!
function lottery($maximum)
{
    $chance = range(0, $maximum);
    for ($i=0; $i < rand(0, 20); $i++) { 
        shuffle($chance);
    }
    return $chance[0];
}

$chance = lottery($maximumPossible);
$currentChance = $chance;


// CREATE ITEM FROM NUMBER
$userItemAttributes = [];
$remainingBits = array_reverse(array_keys($itemAttributes));
while ($chance > 0) {
    foreach ($remainingBits as $i => $value) {
        if ($value > $chance) {
            unset($remainingBits[$i]);
        } else {
            $chance -= $value;
            $userItemAttributes[] = $value;
            break;
        }
    }
}

// RESPONSE
if (isset($_SERVER['HTTP_HOST'])) {
    echo "<pre>";
}
echo "GAME Item attribute table: \n";

$maxLength = 0;
$maxLength2 = 0;
foreach($itemAttributes as $value => $name) {
    $maxLength = max($maxLength, strlen($name));
    $maxLength2 = max($maxLength2, strlen($value));
}
foreach($itemAttributes as $value => $name) {
    echo " - [ " . str_pad($name, $maxLength, ' ', STR_PAD_LEFT) . " ] | "
        . "Value: " . str_pad($value, $maxLength2, ' ', STR_PAD_LEFT) . "";
    if (in_array($value, $userItemAttributes)) {
        echo " <- You got this!";
    }
    echo "\n";
}

echo "\nTRY YOUR LUCK!! \n";
echo "Current chance: " . $currentChance . "\n";
echo "Maximum chance: " . $maximumPossible . "\n";
$luck = ($currentChance * (100/$maximumPossible));
echo "Current luck: " . sprintf("%.4F", $luck) . "%\n";
$amountAttribute = count($userItemAttributes);
if ($amountAttribute == 0) {
    echo "You don't have luck. You got normal item. \n";
} elseif ($luck < 30) {
    echo "You have a littie luck.\n";
} elseif ($luck < 70) {
    echo "You have a good luck.\n";
} elseif ($luck < 90) {
    echo "You have a best luck.\n";
} else {
    echo "You like a god!!\n";
}

if ($amountAttribute > 0) {
    if ($amountAttribute == 1) {
        echo "Your item Attribute: \n";
    } else {
        echo "Your item Attributes: \n";
    }
    foreach($userItemAttributes as $attrKey) {
        echo " - [ " . str_pad($itemAttributes[$attrKey], $maxLength, ' ', STR_PAD_LEFT) . " ] | "
            . "Value: " . str_pad($attrKey, $maxLength2, ' ', STR_PAD_LEFT) . "\n";
    }
}
if (isset($_SERVER['HTTP_HOST'])) {
    echo "</pre>";
}