php man page for gmp_xor

GMP_XOR(3)								 1								GMP_XOR(3)

gmp_xor - Bitwise XOR

SYNOPSIS
       GMP gmp_xor (GMP  $a, GMP  $b)

DESCRIPTION
	Calculates bitwise exclusive OR (XOR) of two GMP numbers.

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 $b
		-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.

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_xor(3) example

	      <?php
	      $xor1 = gmp_init("1101101110011101", 2);
	      $xor2 = gmp_init("0110011001011001", 2);

	      $xor3 = gmp_xor($xor1, $xor2);

	      echo gmp_strval($xor3, 2) . "
";
	      ?>

	      The above example will output:

	      1011110111000100

PHP Documentation Group 														GMP_XOR(3)