Something

<?php
class Template_Screenshot {
  private $_screenshot                = array();
  private static $_screenshot_fields  = array(
  'id', 'id_screenshot_description', 'id_page', 'id_tm', 'scr_type_id',
  'width', 'height', 'uri', 'href', 'label');
  
  // simulates directly fetching a key's value
  public function __get($key) {
    $_return = null;
    if ($this->_screenshot[$key]) {
      $_return = $this->_screenshot[$key];
    }
    return $_return;
  }

  // make the screenshot object
  public function __construct($options) {
    $this->_screenshot = $options;
  }
  
  // make the screenshot object
  public static function getFields() {
    return self::$_screenshot_fields;
  }
}
?>