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Feature Flags

Feature Flags is a symfony bundle that integrates feature flags into your application.

Installation​

composer require 21torr/feature-flags

Defining Feature Flags​

In the root of your project, create a .features.yaml file and define your feature flags there:

feature: true
some-other: false
login: on
something: off

You can use true, false, on and off as possible values.

Usage​

PHP / Symfony​

Fetch the FeatureFlags service:

<?php

public function myAction (FeatureFlags $flags) : Response
{
    if (!$flags->hasFeature("login"))
    {
        throw $this->createNotFoundException("Login disabled.");
    }

    return $this->render(...);
}

Twig​

In twig, use the has_feature() twig function:

{%- if has_feature("login") -%}
	<a href="{{ path("login") }}">Login</a>
{%- endif -%}