Config: Container PSR-11

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A very basic and minimalist PSR-11 implementation for config management and dependency injection.

How it Works?

The container is created based on your current environment (dev, homolog, test, live, …) defined in array files;

See below how to setup:

Setup files:

Create in your project root at the same level of the vendor directory a folder called config.

Inside this folders create files called “config-dev.php”, “config-test.php” where dev, test, live, etc are your environments.

Your folder will look like to:

<project root>
    |
    +-- config
           |
           + config-dev.php
           + config-homolog.php
           + config-test.php
           + config-live.php
   +-- vendor
   +-- composer.json

Create environment variable

You need to setup a variable called “APPLICATION_ENV” before start your server.

This can be done using nginx:

fastcgi_param   APPLICATION_ENV  dev;

Apache:

SetEnv APPLICATION_ENV dev

Docker-Compose

environment:
    APPLICATION_ENV: dev

Docker CLI

docker -e APPLICATION_ENV=dev image

The config-xxxx.php file

config-homolog.php

<?php

return [
    'property1' => 'string',
    'property2' => true,
    'property3' => function () {
        return 'xxxxxx';
    },
    'propertyWithArgs' => function ($p1, $p2) {
        return 'xxxxxx';
    },
];

config-live.php

<?php

return [
    'property2' => false
];

Use in your PHP Code

Create the Definition:

<?php
$definition = (new \ByJG\Config\Definition())
    ->environmentVar('APPLICATION_ENV') // This will setup the environment var to 'APPLICATION_ENV' (default)
    ->addEnvironment('homolog')         // This will setup the HOMOLOG environment
    ->addEnvironment('live')            // This will setup the LIVE environenment inherited HOMOLOG
        ->inheritFrom('homolog')
    ->setCache($somePsr16Implementation, 'live'); // This will cache the result only to live Environment;

The code below will get a property from the defined environment:

<?php
$container = $definition->build();
$property = $container->get('property2');

If the property does not exists an error will be throwed.

If the property is a closure, you can call the get method and you’ll get the closure execution result:

<?php
$container = $definition->build();
$property = $container->get('closureProperty');
$property = $container->get('closurePropertyWithArgs', 'value1', 'value2');
$property = $container->get('closurePropertyWithArgs', ['value1', 'value2']);

If you want get the RAW value without parse clousure:

<?php
$container = $definition->build();
$property = $container->raw('closureProperty');

Checking current environment

<?php
$defintion->getCurrentEnv();

Install

composer require "byjg/config=3.0.*"

Tests

phpunit