README

A clean interface to calculate percentages in PHP: changes between values, percentage increases, partial values, extensions, ...

Think of it as a very lightweight math library for the basic stuff. Aimed to make your code more readable and easier to understand.

Installation

You can install the package via composer:

composer require mattiasgeniar/php-percentages

Usage

<?php
use Mattiasgeniar\Percentage\Percentage;

// What's the percentage increase from 100 to 120?
Percentage::differenceBetween(100, 120);            // 20%

// What's the absolute percentage change from 100 to 80?
// (uses the abs() function)
Percentage::absoluteDifferenceBetween(100, 80);     // 20%, not -20%

// How much is 120 compared to 100?
Percentage::calculate(120, 100);                    // 120%

// How much is 50 compared to 100?
Percentage::calculate(50, 100);                     // 50%

// What is 20% of 200?
Percentage::of(20, 200);                            // 40

// What is the 140% extension from 3 to 2?
Percentage::extension(140, 3, 2);                   // 1.6

// What is the 140% extension from 1 to 2?
Percentage::extension(140, 1, 2);                   // 2.4

Helper functions

The above expressions can also be used through a variety of helper functions:

• percentage()
• percentage_between()
• percentage_abs_between()
• percentage_of()
• percentage_extension()

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email m@ttias.be instead of using the issue tracker.

Credits

• Mattias Geniar
• All Contributors

License

The MIT License (MIT). Please see License File for more information.