PHP：在项目中到处访问类的最佳实践？

I'm self taught & unsure on how to do this, need to access a single instance of my config class, everywhere. Could use a DIC to inject everywhere, but I want it to work dynamically.

I could make the class static, but is that the answer? A DIC could be useless here even. I would be extreemly grateful if someone could give me some advice here. Looking for a clean way, not dirty.

Here is my current setup for injecting into controllers, for things like templating.

$controllerRule = [
    "constructParams" => [$dice->create("App\Providers\Template")],    
    "shared" => true,
];

$dice->addRule("App\Controllers\Frontend\LandingController", $controllerRule);

Here is how I'm currently creating the instance of Config, with my DIC.

$configRule = [
    "constructParams" => ["example"],
    "shared" => true,
];

$dice->addRule("App\Providers\Configuration", $configRule);

Best practice? Don't.

Ask yourself this: Does a class that needs the Config instance require access to all configuration options?

Instead of:

class HomeController {

    private $numberOfItemsShown;

    public function __construct(Config $config) {
        $this->numberOfItemsShown = $config->get('homepage.number_of_items');
    }

}

Do this:

class HomeController {

    private $numberOfItemsShown;

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

}

If a class requires many constructor params, you have a couple of options.

• Pass an associative array ("options" array)
• Split the class into several
• If the parameters have a common concept, create a new class (e.g. instead of "userPassword", "userName", "userEmail", pass a User class that has the others as its properties)

A general rule of thumb is that a class should ask for its configuration, not retrieve it.