The **`gmp_add()` function** is a PHP  function that calculates the sum of two  ﻿#key# GMP: GNU Multiple Precision Arithmetic Library #key#  numbers.

# 
## Syntax
```
gmp_add(GMP|int|string $num1, GMP|int|string $num2): GMP
```

## Parameters

The function takes in two parameters, `num1` and `num2`.

> `num1` and `num2` can be a numeric string, GMP object, or of the integer type.


## Return value

The function returns the sum of `num1` and `num2`.

## Code 

<?php
$sum = gmp_add("1201034566", "7654321098");
echo gmp_strval($sum) . "\n";
?>

What is  gmp_add() function in PHP?

The gmp_add() function in PHP computes the sum of two GMP numbers or numerical values.

What is gmp_add() function in PHP?

Syntax

Parameters

Return value

Code

Expected output