Yii2 how to escape data written to the database?

Question

Yii

Example:

$message = new Messages();
$message->message = $this->message;
$message->save()

$this->message; - data entered by the user

Answer 1

1) When writing data to the database using AR , the lines are escaped. Those. you won't have sql injection there.
You can clear tags in two ways:
1) when displayed in a view, for example:
2) Clear using Htmlpurify, in the beforeSave method, for example:

$this->content = HtmlPurifier::process($this->content) ;

Answer 2

Do whatever you want with the data, with the help of validators (I just didn't understand what you meant by "escaping").

Answer 3

No way. Use parameters (prepared statements).