PHP on Windows tip
I have not seen much about this anywhere, but if you are wondering why you enabled extensions (in PHP.ini) don’t work in PHP on Windows, it is probably because your "extension_dir" path is wrong. This does not show up as an error anywhere other than in Apache’s error log, which is the last place where most would look for an error. To get rid of this error, do not use a relative path for the directory and use the absolute path. It is as simple as that.