SDO_DAS_Setting::isSet — Test whether a property was set prior to being modified
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.
Test whether a property was set prior to being modified. If it was set prior to being modified then the SDO_DAS_Setting will also contain the old value.
Returns TRUE if the property was set prior to being modified, otherwise returns FALSE.