Solved Strings for PHP

What are these codes?

Code:

[gc_cl] => 144
[gc_mb] => 610
[mem_pv] => 2671
[mem_ws] => 2600

 

I can only assume they have something to do with the garbage collector and memory management in Unity
Unity - Manual: Understanding Automatic Memory Management
If not that then I really dunno :S

 

thanks bro