protected function getTableExtraClassesString()
  {
    $classes_html = '';

    if( ! empty($this->table_extra_classes) )
    {
      foreach($this->table_extra_classes as $class)
      {
        $classes_html.= "{$class} ";
      }
    }

    return $classes_html;
  }
protected function getTableExtraClassesString()
  {
    $classes_html = '';

    if( ! empty($this->table_extra_classes) )
    {
      foreach($this->table_extra_classes as $class)
      {
        $classes_html.= "{$class} ";
      }
    }

    return $classes_html;
  }
protected function getTableExtraClassesString ( ) { $ classes_html = '' ; if ( ! empty ( $ this -> table_extra_classes ) ) { foreach ( $ this -> table_extra_classes as $ class ) { $ classes_html .= "{$class} " ; } } return $ classes_html ; }
Return the extra classes as concatenated strings

@return String $classes
Return the extra classes as concatenated strings