PHP gmp_mul() Error: Unable to convert variable to GMP - wrong type

Question

我正在使用 PHP gmp 函数。

我想做以下数学陈述：

$profit_percent = 2405.665;
$bill_line['purchase_average_value'] = 36000000000;   

$r = (1 + ($profit_percent / 100));
$r2 = $bill_line['purchase_average_value'];
$unit_price_with_profit = gmp_mul($r, $r2);

但是出现如下错误：

gmp_mul(): Unable to convert variable to GMP - wrong type

Answer 1

如果您看到 GMP library 的说明：

These functions allow for arbitrary-length integers to be worked with using the GNU MP library.

您正试图将一个浮点数传递给 gmp_mul()。那总是会失败。

PHP gmp_mul() Error: Unable to convert variable to GMP - wrong type

PHP gmp_mul() Error: Unable to convert variable to GMP - wrong type

php

gnu

gmp