I finally got xdebug set up and running and I'm using webgrind to understand the data.
Can someone explain how to understand the data? There's just a bunch of terms that I'm not sure of, like: Invocation Count, Total Self Cost, Total Inclusive Cost. I also don't understand what changing the "show percentage" does. (It defaults to 90%). Any tips on how to use webgrind to understand my php application?