get_defined_constants()

Dear List, i was using the get_defined_constants function the first time today and sadly for me i read in the man-pages that it displays _all_ defined constants. Wouldn't it make sense to implement a function like get_user_defined_constants which would only display those constants define()ed by the user during the development time? If it's not worth a function maybe an parameter would be nice, like // return an array of constants defined by the user using define(); get_defined_constants(C_USER) // return an array with all defined constants get_defined_constants(C_ALL) This would also apply to the functions get_defined_functions and get_defined_vars. Maybe there is already a way to figure such things out, but i haven't found anything in the man-pages. I would be glad to know if something alike exists, or if not, why it wouldn't make sense. Thanks in advance, Nathan PS: Please CC me, as i'm not on the list