date_ap_style-8.x-1.x-dev/date_ap_style.module

<?php

/**
 * @file
 * Date Ap Style.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 *
 * {@inheritdoc}
 */
function date_ap_style_help($route_name, RouteMatchInterface $route_match): string {
  switch ($route_name) {
    case 'help.page.date_ap_style':
      $output = '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('This module outputs date fields in AP Style and aims to meet most of these requirements.') . '</p>';
      $output .= '<h3>' . t('More Information') . '</h3>';
      $output .= '<p>' . t('For more information, please visit the <a href="@link">module page</a>.', ['@link' => 'https://www.drupal.org/project/date_ap_style']) . '</p>';
      return $output;
  }
  return '';
}

/**
 * Returns timezone identifiers including empty option for config validation.
 *
 * @return array
 *   Array of timezone identifiers with empty string included.
 */
function date_ap_style_get_timezone_options(): array {
  // Start with empty option for "Default site/user time zone".
  $timezones = [''];

  // Add all valid timezone identifiers.
  $timezones = array_merge($timezones, \DateTimeZone::listIdentifiers());

  return $timezones;
}