
## Overview

The **`gmp_mod()` function** in [PHP](https://www.educative.io/answers/what-is-php) is used for the modulo operation. It accepts two parameters, such as, `num1` and `num2`. The method calculates `num1` modulo `num2`, such as, `num1 % num2`. The sign of `num2` is ignored, and the result is always positive.

## Syntax

```
gmp_mod(GMP|int|string $num1, GMP|int|string $num2): GMP
```

## Parameters

- `num1`: This parameter can be a GMP object, integer, or a string.
- `num2`: This parameter can be a GMP object, integer, or a string.

## Return value

The method returns a GMP object which is the result of `num1 mod num2`.

## Code example
Let's look at the code below:

<?php
$remainder = gmp_mod(11, 7);
print "11 mod 7 = ".$remainder."\n";

$remainder = gmp_mod("15", 2);
print "15 mod 2 = ".$remainder."\n";
?>


## Code explanation

- Line 2: We obtain 11 mod 7 by invoking `gmp_mod()` function and pass `11` and `7` as arguments.
- Line 3: We print the obtained value of remainder/mod value.
- Line 5: We obtain 15 mod 2  by invoking `gmp_mod()` function and pass `15` and `2` as arguments. Here, `15` is passed as a string.
- Line 6: We print obtained the remainder/mod value.

What is gmp_mod() in PHP?

Overview

Syntax

Parameters

Return value

Code example

Code explanation