A collection of functions for handling bitwise flags

1.0.0 2019-05-07 22:31 UTC

This package is auto-updated.

Last update: 2024-05-08 10:10:48 UTC


A collection of functions for handling bitwise flags


This library is installed via Composer. To install, use composer require pointybeard/helpers-functions-flags or add "pointybeard/helpers-functions-flags": "~1.0" to your composer.json file.

And run composer to update your dependencies:

$ curl -s http://getcomposer.org/installer | php
$ php composer.phar update


There are no particuar requirements for this library other than PHP 5.6 or greater.

To include all the PHP Helpers packages on your project, use composer require pointybeard/helpers or add "pointybeard/helpers": "~1.0" to your composer file.


This library is a collection convenience function for common tasks relating to bitwise flags. They are included by the vendor autoloader automatically. The functions have a namespace of pointybeard\Helpers\Functions\Flags

The following functions are provided:

  • is_flag_set(int $flags, int $flag)

Example usage:


include __DIR__ . '/vendor/autoload.php';

use pointybeard\Helpers\Functions\Flags;

const FLAG_A = 0x0001;
const FLAG_B = 0x0002;
const FLAG_C = 0x0004;

$flags = FLAG_B | FLAG_C;

var_dump(Flags\is_flag_set($flags, FLAG_C));
// bool(true)

var_dump(Flags\is_flag_set($flags, FLAG_A));
// bool(false)


If you believe you have found a bug, please report it using the GitHub issue tracker, or better yet, fork the library and submit a pull request.


We encourage you to contribute to this project. Please check out the Contributing documentation for guidelines about how to get involved.


"PHP Helpers: Flag Functions" is released under the MIT License.