I’m continuing my little collection of useful snippets. Today's example is useful for when you are unsure how a function is called.
The function returns a comma separated list of the function calls that led to the current function.
WordPress array function discovery
I needed to get some specific key values from an array and array_intersect_key didn’t work as I would like. So I thought, this issue must be a prevalent one, maybe WordPress has a solution provided. And low and behold it did. I give you: