Dependency Injection via setter method

Question

Have an issue with dependency injection in PHP that I can't seem to find the answer to. Ok, quick PHP class:

<?php

namespace myapp;

use myapp\template;
use myapp\order;

class user {

    private $template;

    public function __construct(template $template) { 
         $this->template = $template;
     }

    public function add_order(order $order) { 
         // do something with $order here
    }

}

I'm using the php-di package from http://php-di.org/ although am open to change. My question is, how do I inject directly into that add_order() function? Construct injection is simple, and for example:

$container = new Di\Container();
$container->make(mapp\user);

I want the same type of injection to occur, but while calling the add_order() function directly. I want something like this:

$container = new Di\Container();
$container->make(myapp\user::add_order);

Any help? Thanks~

Answer 1

You can use either:

• annotations
• the PHP configuration, for example:

return [
    'mapp\user' => DI\autowire()
        ->method('add_order', <put here what you want to inject>),
];