lravel_ioc_sample_di.php

<?php
require __DIR__.'/vendor/autoload.php';

class Hello
{
    /**
     *
     */
    public function greet()
    {
        echo 'Hello';
    }
}

class Bar
{
    /**
     * @var Greetable
     */
    protected $greeter;

    /**
     * @param Hello $greeter
     */
    public function __construct(Hello $greeter)
    {
        $this->greeter = $greeter;
    }

    /**
     *
     */
    public function say()
    {
        $this->greeter->greet();
        echo PHP_EOL;
    }
}


$app = new \Illuminate\Foundation\Application();

$app->make('Bar')->say();