php man page for gmp_legendre

GMP_LEGENDRE(3) 							 1							   GMP_LEGENDRE(3)

gmp_legendre - Legendre symbol

SYNOPSIS
       int gmp_legendre (GMP  $a, GMP  $p)

DESCRIPTION
	Compute the  Legendre symbol of $a and $p. $p should be odd and must be positive.

PARAMETERS
	      o $a
		-Either  a  GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is
		possible to convert the latter to a number.

	      o $p
		-Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that  it	is
		possible to convert the latter to a number. Should be odd and must be positive.

RETURN VALUES
	A GMP number resource in PHP 5.5 and earlier, or a GMP object in PHP 5.6 and later.

EXAMPLES
       Example #1

	      gmp_legendre(3) example

	      <?php
	      echo gmp_legendre("1", "3") . "
";
	      echo gmp_legendre("2", "3") . "
";
	      ?>

	      The above example will output:

	      1
	      0

PHP Documentation Group 													   GMP_LEGENDRE(3)