How to hide the name of the controller and action in Yii2?

Question

Yii

How can I set up urlManager rules so that the name of the controller and action is not displayed in the address bar, but the ID of a specific post immediately goes, for example.
Let's say there is an address " example.com?r=site&a=action&id=2 ", but you need to do "example.com/2" .

Answer 1

'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
'<id>' => 'site/action'
            ],
        ],

Answer 2

'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
                 '<id:\d+>' => '<_c>/<_a>'
                 //or
                '<id:\d+>' => 'site/<_a>'
               //or
               '<id:\d+>' => 'site/view'
              // и ещё другие варианты могут быть
            ],
        ],

In addition, you need to configure .htaccess