php 如何计算一个数字的百分比?

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时间:2020-08-24 21:38:10  来源:igfitidea点击:

How do I calculate the percentage of a number?

phppercentage

提问by John Smeuth

I would like to calculate, in PHP, the percentage of a number. For example:

我想在 PHP 中计算一个数字的百分比。例如:

$percentage = 50;
$totalWidth = 350;

For this example, 50% of 350 = 175

对于此示例,350 的 50% = 175

How can I do that?

我怎样才能做到这一点?

回答by pogeybait

$percentage = 50;
$totalWidth = 350;

$new_width = ($percentage / 100) * $totalWidth;

回答by hkf

Divide $percentageby 100 and multiply to $totalWidth. Simple maths.

除以$percentage100 并乘以$totalWidth。简单的数学。