gmp_legendre() function in PHP

The gmp_legendre() function calculates the Legendre symbol of two GMP numbers.

It returns −

- GMP number− PHP 5.5 and earlier, or

- GMP object− PHP 5.6 and later

Syntax

gmp_legendre(n1, n2)

Parameters

• n1 − The first GMP number. It can be GMP object in PHP version 5.6 and later. Can also be numeric strings.

• n2 − The second GMP number. It can be GMP object in PHP version 5.6 and later. Can also be numeric strings.

Return

The gmp_legendre() function returns a GMP number or object.

Example

The following is an example −

<?php
   $n1 = 5;
   $n2 = 5;
   echo gmp_legendre($n1, $n2);
?>

Output

The following is the output −

0

Example

Let us see another example −

<?php
   $n1 = 4;
   $n2 = 3;
   echo gmp_legendre($n1, $n2);
?>

Output

The following is the output −

1