mail\BaseMailer compose()

The view to be used for rendering the message body. This can be:

• a string, which represents the view name or path alias for rendering the HTML body of the email. In this case, the text body will be generated by applying strip_tags() to the HTML body.
• an array with 'html' and/or 'text' elements. The 'html' element refers to the view name or path alias for rendering the HTML body, while 'text' element is for rendering the text body. For example, ['html' => 'contact-html', 'text' => 'contact-text'].
• null, meaning the message instance will be returned without body content.

The view to be rendered can be specified in one of the following formats:

• path alias (e.g. "@app/mail/contact");
• a relative view name (e.g. "contact") located under $viewPath.

The parameters (name-value pairs) that will be extracted and made available in the view file.

Message instance.