我需要弄清楚覆盖一个区域需要多少油漆，我遇到了问题。帮助我或给我一个想法

Question

$width = 10; //width
$length = 10; //Length
$door = 2; // Door area
$square = $width * $length - $door; //Total area to be painted
$perMeter = 1;  //Where $w is the amount of paint to paint 1m2
$total = $square * $perMeter; //The total amount of paint is sufficient for painting.
$containers = array(5,12,18,4,8,1); //The values for the number of containers are in liters.

需要多少个桶5,12,18,4,8,1（会从大到小逐渐得到）

Answer 1

整个文件看起来像这样

<?php

declare(strict_types=1);

$width = 10; //width
$length = 10; //Length
$door = 2; // Door area
$square = $width * $length - $door; //Total area to be painted
$perMeter = 1;  //Where $w is the amount of paint to paint 1m2
$total = $square * $perMeter; //The total amount of paint is sufficient for painting.

echo 'Total barrels needed: ' . $total . "barrels\n";

$containers = array(5,12,18,4,8,1); //The values for the number of containers are in liters.

rsort($containers);

$counter = 0;

while ($counter < count($containers)) {
    $total -= ($amount = intdiv($total, $containers[$counter])) * $containers[$counter];
    echo sprintf("%d barrel container - %d\n", $containers[$counter], $amount);
    $counter++;
}

看看变量名，有意义的变量名非常重要，如果你想让你的代码容易被支持。当然，您可以更改变量的值。

我需要弄清楚覆盖一个区域需要多少油漆，我遇到了问题。帮助我或给我一个想法

I need to figure out how much paint is needed to cover an area, I'm having problems with it. Help me or give me an idea

php

calculator