This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Get the list index for a modification made to an element of a many-valued property. For example, if we modified the third element of a many-valued property we could obtain an SDO_DAS_Setting from the change summary corresponding to that modification. A call to getListIndex() on that setting would return the value 2 (lists are indexed from zero).