Where is the "./" in the php.ini extension directory?

Question

Hey guys, you don't want to look like a noob. But it really annoys me ... did you know where it is

  ;  Directory in which the loadable extensions (modules) reside.
 extension_dir = "./"

pointing to?

Thanks for your help in advance!

Answer 1

./ points to the current directory.

Edit

I did not find a definition of what the current directory is when parsing the php.ini , this post suggests that it is relative to the location of the php.ini files.

Answer 2

Just an add for future searches

Running phpinfo on cli (php -a<enter>phpinfo();<enter>) gave me this among the output.

 extension_dir => /usr/lib/php/20131226 => /usr/lib/php/20131226