How to create a button that will download a file when clicked?

Question

Yii

There is a small blog on Yii, I decided to make a button for downloading files. There is a public function in the Article.php file:

public function getFile()
    {
        $file = \Yii::getAlias('@app/files/' . $this->file);

        if (file_exists($file)) {
           \Yii::$app->response->sendFile($file);
        }
    }

I tried to call it in the article file like this, but when you open the article, the download of the file immediately starts without opening the contents of the article. There are similar questions, but for some reason through $_POST, GET does not work at all.

<a href="<?= $article->getFile();?>" download></a>

Answer 1

Make the route site.ru/get-file/filename.jpg
filename.jpg to the file download function as an input parameter of this function.
And further

<a href="https://site.ru/get-file/filename.jpg" download></a>