Input elements

Input elements classes extend the Element\Input class.

This is how you add an element to a form (you do the same for fieldsets and collections).

// the code below relies on the element factory to instanciate the element
$form->addElement('email', array(
    Specs::LABEL => 'Your email',
    Specs::HINT => 'We will send you an account activation email after registration',
    Specs::VALIDATION_RULES => array(
        'required',
        'email'
    ),
    Specs::FILTERS => array(
        'stringtrim'
    )
));

Built-in input fields

The Sirius\Forms library comes packed with a variaty of input fields the cover most of the use-cases:

1. Text - the DEFAULT value
2. Textarea - a text input displayed as a textarea
3. Checkbox - an element that will have a specific value if the user checks it
4. File - this is a special type of element as you will see in the "uploads" section
5. Select - an element that has a list of valid choices from which only one can be chosen
6. Multiselect - an element that has a list of valid choices from which one or more can be chosen

They diverge very little from the base Element\Input class so, by looking at their code, you'll be able to understand what it takes to create your own custom elements.