Setting PHP extension_dir path in php.ini not working as i expected

Question

When i set the extension_dir in php.ini and use the full path like this, it works

extension_dir = "/home/appie/Bureaublad/astroapp/phpdesktop-linux-72.1/ext"
extension = "sweph.so"

But if i do:

extension_dir = "ext"
extension = "sweph.so"

or

extension_dir = "./ext"
extension = "sweph.so"

Then it doesn't. For my program, i can't use full paths since the software can be placed in other directorys. So how to set the right path?

Answer 1

I think a simple

extension_dir = "./"

Should do the trick inside Linux as per the default PHP.ini file.