Getting Started
What is Container?
Container is a small but powerful dependency injection container that allows you to decouple components in your application in order to write clean and testable code.
The container can automatically resolve dependencies of objects resolved through it.
Goals
- Create a powerful dependency injection container that maintains speed and ease of use
Questions?
Container was created by Phil Bennett. Find him on Twitter at @philipobenito.
Installation
System Requirements
You need PHP >= 5.4.0
to use League\Container
but the latest stable version of PHP is recommended.
Composer
Container is available on Packagist and can be installed using Composer:
composer require league/container
Most modern frameworks will include Composer out of the box, but ensure the following file is included:
<?php
// include the Composer autoloader
require 'vendor/autoload.php';
Going Solo
You can also use Container without using Composer by registering an autoloader function:
spl_autoload_register(function ($class) {
$prefix = 'League\\Container\\';
$base_dir = __DIR__ . '/src/';
$len = strlen($prefix);
if (strncmp($prefix, $class, $len) !== 0) {
// no, move to the next registered autoloader
return;
}
$relative_class = substr($class, $len);
$file = $base_dir . str_replace('\\', '/', $relative_class) . '.php';
if (file_exists($file)) {
require $file;
}
});
Or, use any other PSR-4 compatible autoloader.