Example of how to create a form, a dropdown list with options, display them and then retrieve information from the dropdown list:
PHP Code:
//create a form: Form(form_name, page_to_redirect, method)
$formExample = new Form("exampleform", "page_to_send_to_here", "post");
//create a dropdown list object: DropdownList(name)
$exampleDropdown = new DropdownList("myList");
//add options to dropdown list: Option(option_name_displayed, option_value)
$exampleDropdown->add(new Option("Option1", "option1"));
$exampleDropdown->add(new Option("Option2", "option2"));
//add dropdown list to form
$formExample->add($exampleDropdown);
//add button to form
$formExample->add(new Button("Click Me", "submit", "submit"));
//add form to document to display it
$document->add($formExample);
//after clicking button to submit form
if($mysidia->input->post("submit")){
//retrieve option selected in the dropdown list, by the dropdown list name
$chosenOption = $mysidia->input->post("myList");
$document->add(new Comment("I chose this: {$chosenOption}"));
}