Yii2: How do you use named parameters in console commands?

问题

How can I write the console command yii controller/action --param1=something --param2=anything and retrieve those named parameters in the action?

回答1:

I found out that the documentation does say how to, but instead of calling it "named parameters" as I expected it to, it is called options: http://www.yiiframework.com/doc-2.0/guide-tutorial-console.html#create-command

The docs is not quite complete though. So here is an example:

1. You add the parameters as properties to the controller:

class CustomerController extends Controller {
    public $param1;
    public $param2;
    ...

2. You add the options method to the controller:

    public function options($actionID) {
        return array_merge(parent::options($actionID), ['param1', 'param2']);
    }

$actionID must be specified, and parent::options($actionID) is used to include any existing options.

3. You can now access the parameters within your action with $this->param1 and $this->param2, eg.:

    public function actionSomething() {
        doAnything($this->param1, $this->param2);
    }

It's okay to combine non-named and named parameters. The named ones just need to be specified last.

Also lacking from the docs is the fact that if you specify a parameter without a value (eg. --param1 instead of --param1=500) the value of $this->param1 will be boolean true. If not specified at all the value will be NULL.

来源：https://stackoverflow.com/questions/38812696/yii2-how-do-you-use-named-parameters-in-console-commands