如何在PHP中拆分float? [英] How to split float in PHP?

问题描述

假设我们有12.054，我想将其拆分为三个变量，例如 $ whole_number = 12 $ numerator = 54 和 $ denominator = 1000 .你能帮我吗?

Let's say we have 12.054 and I want to split it to three variables like $whole_number=12 $numerator=54 and $denominator=1000. Could you help me?

推荐答案

一种直截了当的方法-不太学术，但它适用于PHP;-):

A straight-forward approach - not very academic, but it works for PHP ;-):

$float        = 12.054;
$parts        = explode('.', (string)$float);
$whole_number = $parts[0];
$numerator    = trim($parts[1], '0');
$denominator  = pow(10, strlen(rtrim($parts[1], '0')));

可能还需要做更多的工作来确保边缘情况也可以工作(跟踪 0 s，根本没有小数部分，等等).

Some more work might be needed to ensure that edge case work too (trailing 0s, no decimal part at all, etc.).

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