如何将数字格式化为仅保留小数点后两位? [英] How do I format numbers to have only two decimal places?

问题描述

我希望实数是例如12.92，而不是12.9241.可以那样做吗?

I want that real numbers would be for example 12.92, but not 12.9241. Is it possible to do like that?

推荐答案

在PHP中，尝试 number_format :

$n = 1234.5678;

// Two decimal places, using '.' for the decimal separator
// and ',' for the thousands separator.
$formatted = number_format($n, 2, '.', ',');
// 1,234.57

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