PHP find ini location, how to change ini file in php-apahce image

 ini file location:

https://stackoverflow.com/questions/8684609/where-can-i-find-php-ini

<?php phpinfo(); ?>

How to change in php-apache

use above to get location of ini file:

then mount volumne

    www:
        build: .
        ports:
            - "8001:80"
        volumes:
            - ./www:/var/www/html/
            - ./php/php.ini:/usr/local/etc/php/php.ini
        depends_on:
            - db

can copy ini file from 

https://hub.docker.com/_/php

https://github.com/php/php-src/blob/master/php.ini-production