# SDO_DAS_ChangeSummary::getOldValues

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SDO_DAS_ChangeSummary::getOldValues — Get the old values for a given changed SDO_DataObject

### Description

SDO_DAS_ChangeSummary::getOldValues ( SDO_DataObject `$data_object` ) : SDO_List
Warning

This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.

Get a list of the old values for a given changed SDO_DataObject. Returns a list of SDO_DAS_Settings describing the old values for the changed properties of the SDO_DataObject.

### Parameters

`data_object`

  The data object which has been changed.

### Return Values

A list of SDO_DAS_Settings describing the old values for the changed properties of the SDO_DataObject. If the change type is SDO_DAS_ChangeSummary::ADDITION, this list is empty.