一个数字占另一个数字的百分比


Percentage a Number is of Another Number

如何在PHP中找到一个数字的百分比?

$num1 = 2.6;
$num2 = 2.6;
// Should equal to 100%

将这两个数字相除并乘以100得到百分比:

$percentage = ($num1 / $num2) * 100;
echo $percentage . "%";

当然你需要检查$num1不为0,像这样:$percentage = ($num1 !== 0 ? ($num1 / $num2) : 0) * 100;

$percentage = sprintf("%d%%", $num1 / $num2 * 100); // string: 100%