PHP如何将数字指数数字转换为字符串? [英] PHP how to convert number exponential number to string?

问题描述

我用科学计数法存储了一个数字

I have a number stored in scientific notation

2.01421700079E + 14

2.01421700079E+14

我尝试使用float，string，int却无法获取

I've tried using float, string, int and I can't get

0201421700079085 来自 2.01421700079E + 14

0201421700079085 from 2.01421700079E+14

1. echo (float)$awb;
2. echo number_format($awb, 0, '', '');
3. echo (int)$awb;
4. echo (string)$awb;

1. 2.01421700079E + 14 =浮动
2. 201421700079085 =数字
3. 201421700079085 =整数
4. 2.01421700079E + 14 =字符串

推荐答案

printf 和朋友会做这个:

printf and friends will do this:

<?php
$awb = 2.01421700079E+14;
$str = sprintf("%d", $awb);
var_dump($str);

输出:

string(15) "201421700079000"

您的原始号码中显然没有足够的信息来获得比此更高的精度.

There obviously isn't enough information in your original number to get any more precision than that.

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