denser

<?
  define('ORA_CHARSET_DEFAULT', 'SPANISH_SPAIN.AL32UTF8');
  define('ORA_CONNECTION_TYPE_DEFAULT', 1);
  define('ORA_CONNECTION_TYPE_PERSISTENT', 2);
  define('ORA_CONNECTION_TYPE_NEW', 3);
  define('ORA_MESSAGES_NOT_CONNECTED', 'Not connected to Oracle instance');
  
  class ORACLE {
    private static $_instance;
    private $conn_handle;