it us quite helpful it gives basic knowledge who does not know anything about php.ini file it is good for the starters i believe please go through the part1 as well which gives idea to continue with this part2 quite intresting thanks for this article but i think you can explain some more concepts like about the image i mean about gd etc and many more are still there it will be much helpful for us if you provide information about the complete ini file(As this miss some concepts)