11-03-2016, 11:02 PM
Welllll, your best bet is going to be userspice 3. Here's the deal. Version 3.3 is a little more polished, but it changed the directory structure a little bit, so I never wrote a way to update 3.3 to 4.0. 3.2 works great and can be upgraded. Note that these aren't officially supported and they are not object oriented/pdo, although you can easily include the userspice 4 classes in manually if you want to do your queries, etc.
https://userspice.org/UserSpice3.2.0.zip
https://userspice.org/UserSpice33.zip
If you use 3.2 and your intranet gets updated, you can install...
https://userspice.org/us3to4.zip
https://userspice.org/UserSpice3.2.0.zip
https://userspice.org/UserSpice33.zip
If you use 3.2 and your intranet gets updated, you can install...
https://userspice.org/us3to4.zip