FormTestRadiosCheckedForm.php

<?php

namespace Drupal\form_test\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\HttpFoundation\JsonResponse;

/**
 * Form constructor to test #default_value settings of radios.
 *
 * @internal
 */
class FormTestRadiosCheckedForm extends FormBase {
    
    /**
     * {@inheritdoc}
     */
    public function getFormId() {
        return 'form_test_radios_checked';
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildForm(array $form, FormStateInterface $form_state) {
        $form['radios'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                0 => 'Zero',
                'foo' => 'Foo',
                1 => 'One',
                'bar' => '<em>Bar - radios</em>',
                '>' => "<em>Special Char</em><script>alert('radios');</script>",
            ],
            '#default_value' => 0,
        ];
        $form['radios-string'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                0 => 'Zero',
                'foo' => 'Foo',
                1 => 'One',
                'bar' => '<em>Bar - radios</em>',
                '>' => "<em>Special Char</em><script>alert('radios');</script>",
            ],
            '#default_value' => 'bar',
        ];
        $form['radios-boolean-true'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                1 => 'True',
                0 => 'False',
            ],
            '#default_value' => TRUE,
        ];
        $form['radios-boolean-false'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                1 => 'True',
                0 => 'False',
            ],
            '#default_value' => FALSE,
        ];
        $form['radios-boolean-any'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                1 => 'True',
                0 => 'False',
            ],
            '#default_value' => 'All',
        ];
        $form['radios-string-zero'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                '0' => 'Zero',
                100 => 'One hundred',
            ],
            '#default_value' => 0,
        ];
        $form['radios-int-non-zero'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                0 => 'Zero',
                10 => 'Ten',
                100 => 'One hundred',
            ],
            '#default_value' => 10,
        ];
        $form['radios-int-non-zero-as-string'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                '0' => 'Zero',
                '10' => 'Ten',
                '100' => 'One hundred',
            ],
            '#default_value' => '100',
        ];
        $form['radios-empty-string'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                0 => 'None',
            ],
            '#default_value' => '',
        ];
        $form['radios-empty-array'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                0 => 'None',
            ],
            '#default_value' => [],
        ];
        $form['radios-key-FALSE'] = [
            '#type' => 'radios',
            '#title' => 'Radios',
            '#options' => [
                'All' => '- Any -',
                FALSE => 'False',
            ],
            '#default_value' => '',
        ];
        $form['submit'] = [
            '#type' => 'submit',
            '#value' => 'Submit',
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function submitForm(array &$form, FormStateInterface $form_state) {
        $form_state->setResponse(new JsonResponse($form_state->getValues()));
    }

}