Why does attribute order change when registerLinkTag Yii2?

Question

Yii

I register the tag in the controller:

Yii::$app->view->registerLinkTag(['rel' => 'canonical', 'href' => 'http://mylink']);

The code renders:
<link href="http://mylink" rel="canonical">
Why are the attributes swapping? I need rel to come first.

Answer 1

All found. In the $attributeOrder parameter of the BaseHtml class, the attributes were arranged in a certain (weird) order.

Answer 2

because the letter h comes before the letter r in the English alphabet