DataSet Objects?

[kenhess]

All,

I am an avid PHP developer but unfortunately my employer wants us to learn (gasp) .NET, so onward I go and I am trying to make sense of a term and concept. This is the DataSet Object. In .NET this is almost a snapshot of a DB with tables and relationships that can be manipulated in a disconnected fashion and then updated when connected.
The question is:
Is there anything like this with PHP?
If so, what is it called and how do you do it?

[AstroTeg]

The ADOdb library I believe has some code and functions in it which allows for a "data set" as seen in ASP and .NET. I believe otherwise, you'd have to look into the particular database engine's PHP functions to find details on how to emulate this.