从百分比总和中找出百分比 PHP

Question

所以我有一系列子项目，它们自己的百分比为 100，而父项目是所有这些百分比的总和（满 100）：

 $parentItem['percent'] = sumOfAllChildren %
 $childItem1['percent'] = 50
 $childItem2['percent'] = 60
 $childItem3['percent'] = 100
 $childItem4['percent'] = 15

在这种情况下，如何使用 PHP 计算父项的总和？

Answer 1

您始终可以通过稍微重构代码来使用 array_sum 函数。

$children = [50,60,100,15];
$parent = array_sum($children); // would give you 225

// add a child
$children[] = 100;
$parent = array_sum($children); // would give you 325

有关详细信息，请参阅 http://php.net/manual/en/function.array-sum.php。

Answer 2

这样计算：

$children = [$childItem1, $childItem2, $childItem3, $childItem4];
$childPers = array_column($children, 'percent');
$parentItem['percent'] = array_sum($childPers)/(100 * count($childPers));

Answer 3

希望有用

 $childItem1['percent'] = 50;
 $childItem2['percent'] = 60 ;
 $childItem3['percent'] = 100 ;
 $childItem4['percent'] = 15  ;

$total=0;

$total+=$childItem1['percent']; 
$total+=$childItem2['percent']; 
$total+=$childItem3['percent'];
$total+=$childItem4['percent'];  

$percent=(100 / 400) * $total;

$parentItem['percent'] = $percent. "%";

谢谢..

从百分比总和中找出百分比 PHP

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