$request_params->__set('reserveOrder', '');
$request_params->__set('reserveQuantity', '');
/* From OptionOrderRequest */
$request_params->__set('symbolInfo', $option_symbol_obj);
$request_params->__set('stopLimitPrice', '');
$request_params->__set('orderAction', 'BUY_OPEN');
//{BUY_OPEN, SELL_OPEN, BUY_CLOSE, SELL_CLOSE'}
$request_params->__set('priceType', 'LIMIT');
// { MARKET, LIMIT, STOP, STOP_LIMIT, MARKET_ON_CLOSE'}
$request_params->__set('marketSession', 'REGULAR');
// { REGULAR, EXTENDED }
$request_params->__set('orderTerm', 'GOOD_FOR_DAY');
//{ GOOD_UNTIL_CANCEL,GOOD_FOR_DAY,IMMEDIATE_OR_CANCEL,FILL_OR_KILL}
$request_params->__set('routingDestination', '');
$request_xml_object = new PlaceOptionOrder($request_params);
$out = $ac_obj->placeOptionOrder($request_xml_object);
break;
//6. Preview Change Equity Order
//6. Preview Change Equity Order
case 6:
$request_params = new changeEquityOrderRequest();
//From changeEquityOrderRequest
$request_params->__set('priceType', '');
$request_params->__set('orderTerm', 'GOOD_UNTIL_CANCEL');
//From ChangeOrderBase
$request_params->__set('accountId', 83405188);
$request_params->__set('orderNum', 162);
$request_params->__set('clientOrderId', 'asdfse');
$request_params->__set('limitPrice', '');
$request_params->__set('previewId', '');
$request_params->__set('stopPrice', '');
