civictechro/website-alba-iulia-smart-city

<?php

namespace App\Meta;

final class OpenGraphMetaCategory {
  private function __construct() {}

  // artificial
  const IMAGE = 'image';
  const TYPE = 'type';

  // opg tags
  const LOCALE = 'og:locale';
  const SITE_NAME = 'og:site_name';
  const DESCRIPTION = 'og:description';
  const TITLE = 'og:title';
  const URL = 'og:url';

  public static function getList(): array {
    return array(
      self::IMAGE,
      self::TYPE,
      self::LOCALE,
      self::SITE_NAME,
      self::DESCRIPTION,
      self::TITLE,
      self::URL
    );
  }
}