(PHP 4 >= 4.2.0)aggregate —
Dynamic class and object aggregation of methods and properties
Descriptionvoid aggregate ( object object, string class_name )
Aggregates methods and properties defined in a class to
an existing object. Methods and properties with names starting with
an underscore character (_) are considered private to
the aggregated class and are not used, constructors are
also excluded from the aggregation procedure.