$form = $this->createFormBuilder() ->add('username', TextType::class) ->getForm();
{!! Form::open() !!} {!! Form::checkbox('agree', 'yes', true) !!} {!! Form::close() !!}
$form = new Zend/Form/Form(); $form->addElement('select', 'gender', array( 'label' => 'Gender:', 'multiOptions' => array( 'f' => 'female', 'm' => 'male' ) ));In this example, we are using Zend Form package to add a select input field to a form. Here, the addElement() function is used to add a new select input field named 'gender' to the form. In summary, addElement() is a PHP function that is used to add a new input field to an existing form using various PHP form builder libraries like Symfony Form, Laravel Collective, and Zend Form.