In this example, we define an HTML document with a header, body, and a form. The PHP code within the form generates input fields and a submit button. If the form has been submitted (by checking the value of `$submitted`), a confirmation message is displayed instead of the form. The PHP View Template package library provides various classes and functions to manage template views. Among them are the `View` class, which defines a template view, and the `render` function, which renders the view with specified data. Some popular PHP frameworks that use this package library include Laravel and Symfony.
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