Régis Viarre <firstname.lastname@example.org>
This class enables you to handle all the operations regarding forms. Indeed, you
build a form using object components (fieldsets, fields, buttons) and it's able
to display, to retrieve the posted values and also validate the entered data
from constraints you define. The validation is done in PHP when the form is
looses the focus and the whole form is validated when the user submits it).