# bcmod

(PHP 4, PHP 5)

bcmod — Get modulus of an arbitrary precision number

### Description

string bcmod ( string `$left_operand` , string `$modulus` )

Get the modulus of the `left_operand` using `modulus` .

### Parameters

`left_operand`

  The left operand, as a string.

`modulus`

  The modulus, as a string.

### Return Values

Returns the modulus as a string, or `NULL` if `modulus` is 0.

### Examples

Example#1 bcmod() example

`<?php
echo bcmod('4', '2'); // 0
echo bcmod('2', '4'); // 2
?>`

### See Also

- bcdiv()