khanhn-2612/php-calculator

A basic calculator package for Laravel

v1.0.1 2026-05-22 07:21 UTC

Requires

• php: ^8.2
• illuminate/support: ^9.0|^10.0|^11.0|^12.0

Requires (Dev)

• orchestra/testbench: ^7.0|^8.0|^9.0|^10.0
• phpunit/phpunit: ^9.0|^10.0|^11.0

MIT

• khanhn

Published on Packagist.org on 2026-05-22 07:21 UTC

README

A basic calculator package for Laravel.

Requirements

• PHP 8.2+
• Laravel 9 / 10 / 11 / 12

Installation

composer require khanhn-2612/php-calculator

Laravel auto-discovers the service provider via package auto-discovery.

Usage

Direct instantiation

use KhanhN\Calculator\Calculator;

$calc = new Calculator();

// Basic arithmetic
$calc->add(2, 3);            // 5.0
$calc->subtract(5, 2);       // 3.0
$calc->multiply(2, 4);       // 8.0
$calc->divide(10, 2);        // 5.0

// Extra math
$calc->power(2, 3);          // 8.0
$calc->sqrt(16);             // 4.0
$calc->modulo(10, 3);        // 1.0
$calc->abs(-7);              // 7.0
$calc->percentage(200, 15);  // 30.0  (15% of 200)

// Rounding
$calc->round(3.456, 2);      // 3.46
$calc->floor(3.9);           // 3.0
$calc->ceil(3.1);            // 4.0

Fluent chain API

use KhanhN\Calculator\Calculator;

$result = Calculator::chain(100)
    ->add(50)
    ->subtract(20)
    ->multiply(2)
    ->divide(4)
    ->round(2)
    ->result(); // 65.0

Via facade

use KhanhN\Calculator\Facades\Calculator;

Calculator::add(2, 3);
Calculator::chain(100)->add(50)->result();

Testing

composer install
./vendor/bin/phpunit