php 7.1中的php.ini文件在哪里？

I download VC14 x64 Non Thread Safe (2017-Jan-18 21:06:20) on http://windows.php.net/download

Then I extract it

Look at the result :

Seems no php.ini file

Where I found it?

Just copy php.ini-development or php.ini-production as new file named php.ini. Edit the options and start using it.

For development server rename php.ini-development as php.ini also for production server php.ini-production as php.ini