mileschou/toggle

The feature toggle library for PHP

1.0.0 2019-01-10 03:19 UTC

README

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The feature toggle library for PHP

Concept

Coming soon...

Usage

The Toggle class is the core class. All feature config will set on this object.

Feature Toggle

Use the fixed result:

<?php

use MilesChou\Toggle\Toggle;

$toggle = new Toggle();
$toggle->create('f1', true);

// Will return true
$toggle->isActive('f1');

Use the object with fixed result:

<?php

use MilesChou\Toggle\Feature;
use MilesChou\Toggle\Toggle;

$toggle = new Toggle();
$toggle->add('f1', Feature::create(true));

// Will return true
$toggle->isActive('f1');

Use callable to decide the return dynamically:

<?php

use MilesChou\Toggle\Toggle;

$toggle = new Toggle();
$toggle->create('f1', function() {
    return true;
});

// Will return true
$toggle->isActive('f1');

Use callable with Context:

<?php

use MilesChou\Toggle\Toggle;

$toggle = new Toggle();
$toggle->create('f1', function($context) {
    return $context['return'];
});

// Will return true
$toggle->isActive('f1', ['return' => true]);

Parameters

Feature instance can store some parameter. For example:

<?php

use MilesChou\Toggle\Toggle;

$toggle = new Toggle();

$toggle->create('f1', true, ['name' => 'Miles']);
$toggle->create('f2', false, ['name' => 'Chou']);

// Will return 'Chou'
$toggle->feature('f1')->params('name');

// Also using in callback
$toggle->create('f3', function($context, array $params) {
    return $params['key'] === $context['key'];
}, ['key' => 'foo']);

Control Structure

This snippet is like if / switch structure:

<?php

use MilesChou\Toggle\Toggle;

$toggle = new Toggle();
$toggle->create('f1');
$toggle->create('f2');
$toggle->create('f3');

$toggle
    ->when('f1', function ($context, $params) {
        // Something when f1 is on
    })
    ->when('f2', function ($context, $params) {
        // Something when f2 is on
    })
    ->when('f3', function ($context, $params) {
        // Something when f3 is on
    });

Processors

Refer the Toggle Processor Project.