GMP Functions
PHP Manual

gmp_add

Add numbers

Description

resource gmp_add ( resource $a , resource $b )

Add two numbers.

Parameters

a

A number that will be added.

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

b

A number that will be added.

It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

Return Values

A GMP number representing the sum of the arguments.

Examples

Example #1 gmp_add example

<?php
$sum = gmp_add("123456789012345", "76543210987655");
echo gmp_strval($sum) . "\n";
?>

The above example will output:

200000000000000