Yii2 Need explanation for pretty url rules

Question

how can I prettify the following url:

group?id=1&page=7&per-page=12

to look like group/id/1/page/7/per-page/12

My UrlManager currently looks like this:

        'urlManager' => [
        'class' => 'yii\web\UrlManager',
        'enablePrettyUrl' => true,
        'showScriptName' => false,
        'rules' => [
            '<alias:\w+>' => 'site/<alias>',
        ],
    ],

Answer 1

I got the answer. Add this rule on top of other rules:

'<action:\w+>/<id:\d+>/page/<page:\d+>/per-page/<per-page:\d+>' => 'site/<action>'