/**
 * close
 +-----------------------------------------
 * @access protected
 * @return void
 */
 public function close()
 {
     $this->_pdo = null;
     $this->_active = false;
     \pt\framework\debug::log('PDO: DB connection close.');
 }
 /**
 * close
 +-----------------------------------------
 * @access protected
 * @return void
 */
 public function close()
 {
     $this->_active = false;
     oci_free_statement($this->_statement);
     oci_close($this->_connect);
     debug::log('PDO: DB connection close.');
 }