bcmul

(PHP 4, PHP 5)

bcmul — Multiply two arbitrary precision number

说明

string bcmul ( string $left_operand , string $right_operand [, int $scale ] )

Multiply the left_operand by the right_operand.

参数

left_operand: The left operand, as a string.
right_operand: The right operand, as a string.
scale: 此可选参数用于设置结果中小数点后的小数位数。也可通过使用 bcscale() 来设置全局默认的小数位数，用于所有函数。

返回值

Returns the result as a string.

范例

Example #1 bcmul() example


<?php
echo bcmul('1.34747474747', '35', 3); // 47.161
echo bcmul('2', '4'); // 8
?>

参见

bcdiv() - Divide two arbitrary precision numbers