Online PHP editor | rfc for O07Xf

@ 2023-06-28T05:59:26Z

<?php

function getBillsCountInMoneyAmount(int $moneyAmount, int $bill): int
{
    $divisionRemain = $moneyAmount % $bill;
    
    if ($moneyAmount === $divisionRemain) {
        return 0;
    }
    
    return ($moneyAmount - $divisionRemain) / $bill;
}

function getDisposableBillsCount(int $bill, int $billsCount, array $billsInStock): int
{
    $countInStock = 0;
    
    if (array_key_exists($bill, $billsInStock)) {
        $countInStock = $billsInStock[$bill];
    }

    return min($billsCount, $countInStock);
}

function dispenseMoney(int $requestedMoney, array $billsInStock): array
{
    $remainedToDispenseMoney = $requestedMoney;
    $result = [];
    
    foreach($billsInStock as $bill => $countInStock) {
        $billsCount = getBillsCountInMoneyAmount($remainedToDispenseMoney, $bill);
        $disposableBillsCount = getDisposableBillsCount($bill, $billsCount, $billsInStock);
        $result[$bill] = $disposableBillsCount;
        $remainedToDispenseMoney -= $disposableBillsCount * $bill;
    }
    
    if (0 < $remainedToDispenseMoney) {
       throw new Exception('Недостаточно купюр'); 
    }
    
    return $result;
}


$billsInStock = [5000 => 3, 2000 => 4, 1000 => 10, 500 => 30, 200 => 10, 100 => 30];
$requestedMoney = 11600;

var_dump(dispenseMoney($requestedMoney, $billsInStock));

Output for git.master_jit, git.master, rfc.property-hooks: array(6) { [5000]=> int(2) [2000]=> int(0) [1000]=> int(1) [500]=> int(1) [200]=> int(0) [100]=> int(1) }

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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2016-08-14 Arrow functions - withdrawn
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2016-04-19 Lexical scope support for anonymous classes - suspended
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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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