README

The Rensen library provides a lightweight reactive system for PHP. It allows you to create reactive values that automatically update when dependencies change.

Features

• Define reactive values (R) that automatically recompute when their dependencies change.
• Efficient dependency tracking with minimal state.

Requirements

• PHP >= 8.0

Installation

Using Composer:

composer require xtompie/rensen

Usage

The following example demonstrates how to define reactive values and react to their changes:

use Xtompie\Rensen\R;

// Define reactive values
$a = new R(fn() => 1);
$b = new R(fn() => 2);

// Create a dependent reactive value
$c = new R(fn() => $a() + $b());

// React to changes in $c
new R(fn() => print("c: {$c()}\n"));

// Initial output:
// c: 3

// Change $a
$a(fn() => 10);

// Outputs:
// c: 12

Explanation

1. Reactive values (R) are created using a callable.
2. Dependencies are automatically tracked. For example, $c depends on $a and $b.
3. When a dependency changes, all dependent values and reactions are updated.

Why Rensen?

Rensen brings a reactive programming model to PHP. Inspired by modern frontend frameworks, it enables automatic propagation of changes in a simple and efficient way.