International PHP Conference Berlin 2025

gmp_or

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_orBitwise OR

Description

gmp_or(GMP|int|string $num1, GMP|int|string $num2): GMP

Calculates bitwise inclusive OR of two GMP numbers.

Parameters

num1

A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).

num2

A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when base is equal to 0).

Return Values

A GMP object.

Examples

Example #1 gmp_or() example

<?php
$or1
= gmp_or("0xfffffff2", "4");
echo
gmp_strval($or1, 16) . "\n";
$or2 = gmp_or("0xfffffff2", "2");
echo
gmp_strval($or2, 16) . "\n";
?>

The above example will output:

fffffff6
fffffff2

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