GMP Functions
PHP Manual

gmp_mul

Multiply numbers

Description

GMP gmp_mul ( GMP $a , GMP $b )

Multiplies a by b and returns the result.

Parameters

a

A number that will be multiplied by b.

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

b

A number that will be multiplied by a.

Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

Return Values

A GMP number resource in PHP 5.5 and earlier, or a GMP object in PHP 5.6 and later.

Examples

Example #1 gmp_mul example

<?php
$mul = gmp_mul("12345678", "2000");
echo gmp_strval($mul) . "\n";
?>

The above example will output:

24691356000