PHP: How to List All Functions of an Extension

Recently I’ve been doing quite a lot of work that required UUID
generation. There is two PHP libraries for generating UUID’s. One of them
hasn’t been updated in a long, long time and the second one has absolute
no documentation for it. After spending a few moments trying to guess the
function names that this newly compiled extension provided, I found that PHP has
a command called get_extension_funcs() which does exactly what it says on the
tin. It will provide you with a list of functions that an extension can provide.

By running:

echo var_dump(get_extension_funcs("uuid"))  

We get the following output: