class MysqliHooks

class MysqliHooks {
  use RequirementsTrait;
  use StringTranslationTrait;
  
  /**
   * Implements hook_help().
   */
  public function help($route_name, RouteMatchInterface $route_match) : ?string {
    switch ($route_name) {
      case 'help.page.mysqli':
        $output = '';
        $output .= '<h3>' . $this->t('About') . '</h3>';
        $output .= '<p>' . $this->t('The MySQLi module provides the connection between Drupal and a MySQL, MariaDB or equivalent database using the mysqli PHP extension. For more information, see the <a href=":mysqli">online documentation for the MySQLi module</a>.', [
          ':mysqli' => 'https://www.drupal.org/documentation/modules/mysqli',
        ]) . '</p>';
        return $output;
    }
    return NULL;
  }
  
  /**
   * Implements hook_runtime_requirements().
   */
  public function runtimeRequirements() : array {
    if (!Database::isActiveConnection()) {
      return [];
    }
    $connection = Database::getConnection();
    // Only show requirements when MySQLi is the default database connection.
    if (!($connection->driver() === 'mysqli' && $connection->getProvider() === 'mysqli')) {
      return [];
    }
    return $this->getRuntimeRequirements($connection);
  }

}