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bcmul

Description

The bcmul of BCMath for PHP multiplies two arbitrary precision numbers.

Syntax

bcmul(
    string $num1,
    string $num2,
    ?int $scale = null
): string

Parameters

num1

The left operand, as a string.

num2

The right operand, as a string.

scale

Sets the number of digits after the decimal place in the result.

If omitted, it will default to the scale set globally with the bcscale() function, or fallback to 0 if this has not been set.

Return

Returns the result of the multiplication, as a string.

Examples

1 · num1 num2

<?

$num1 = "1.234";
$num2 = "5";

$return = bcmul($num1, $num2);

var_dump($return);

string(1) "6"

2 · scale

<?

$num1 = "1.234";
$num2 = "5";
$scale = 6;

$return = bcmul($num1, $num2, $scale);

var_dump($return);

string(8) "6.170000"

3 · bcscale

<?

$scale = 6;

bcscale($scale);

$num1 = "1.234";
$num2 = "5";

$return = bcmul($num1, $num2);

var_dump($return);

string(8) "6.170000"