diff --git a/README.md b/README.md
index 406290b..a0a47d7 100644
--- a/README.md
+++ b/README.md
@@ -148,6 +148,23 @@ apk add --no-cache php7.3-dev gcc g++
 pecl install {extension-name}
 ```
 
+### PHP ini settings
+
+To configure extra [php.ini](https://www.php.net/manual/en/ini.php): settings,
+create application specific `php.ini` and copy the file into docker image:
+
+
+```ini
+# php.ini
+memory_limit = 512M
+```
+
+```Dockerfile
+FROM phpearth/php:7.3-nginx
+
+COPY php.ini $PHP_INI_DIR/conf.d/my-app.ini
+```
+
 #### Missing extension?
 
 In case you'd need an additional extension in the PHP.earth repository, [open an issue](https://github.com/phpearth/docker-php/issues).
diff --git a/docker/7.0-apache.Dockerfile b/docker/7.0-apache.Dockerfile
index 6cb5d76..601b7bf 100644
--- a/docker/7.0-apache.Dockerfile
+++ b/docker/7.0-apache.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.0, Apache, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.0 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.0 \
         php7.0-phar \
         php7.0-bcmath \
         php7.0-calendar \
@@ -50,7 +54,8 @@ ENV \
         curl \
         ca-certificates \
         runit \
-        apache2"
+        apache2 \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0-cgi.Dockerfile b/docker/7.0-cgi.Dockerfile
index bea87a9..dbfd8a6 100644
--- a/docker/7.0-cgi.Dockerfile
+++ b/docker/7.0-cgi.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CGI 7.0, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.0 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.0 \
         php7.0-phar \
         php7.0-bcmath \
         php7.0-calendar \
@@ -49,7 +53,8 @@ ENV \
         php7.0-cgi \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0-cli.Dockerfile b/docker/7.0-cli.Dockerfile
index 3cafaee..aa2dde6 100644
--- a/docker/7.0-cli.Dockerfile
+++ b/docker/7.0-cli.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.0, additional PHP extensions, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.0 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.0 \
         php7.0-phar \
         php7.0-bcmath \
         php7.0-calendar \
@@ -47,7 +51,8 @@ ENV \
         php7.0-json \
         php7.0-posix \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0-lighttpd.Dockerfile b/docker/7.0-lighttpd.Dockerfile
index a85c022..a6a5a56 100644
--- a/docker/7.0-lighttpd.Dockerfile
+++ b/docker/7.0-lighttpd.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.0, Lighttpd, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="lighttpd \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        lighttpd \
         php7.0 \
         php7.0-phar \
         php7.0-bcmath \
@@ -50,7 +54,8 @@ ENV \
         php7.0-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0-litespeed.Dockerfile b/docker/7.0-litespeed.Dockerfile
index 4ca939f..0f8ba54 100644
--- a/docker/7.0-litespeed.Dockerfile
+++ b/docker/7.0-litespeed.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.0, OpenLiteSpeed, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="curl \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        curl \
         ca-certificates \
         runit \
         php7.0 \
@@ -50,7 +54,8 @@ ENV \
         php7.0-json \
         php7.0-posix \
         php7.0-litespeed \
-        litespeed"
+        litespeed \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0-nginx.Dockerfile b/docker/7.0-nginx.Dockerfile
index aef059f..eb219a3 100644
--- a/docker/7.0-nginx.Dockerfile
+++ b/docker/7.0-nginx.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.0, Nginx, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="nginx \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        nginx \
         nginx-mod-http-headers-more \
         php7.0 \
         php7.0-phar \
@@ -51,7 +55,8 @@ ENV \
         php7.0-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.0.Dockerfile b/docker/7.0.Dockerfile
index 3920e2c..f5ab0fc 100644
--- a/docker/7.0.Dockerfile
+++ b/docker/7.0.Dockerfile
@@ -12,13 +12,18 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.0, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.0 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.0
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.0 \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-apache.Dockerfile b/docker/7.1-apache.Dockerfile
index 6122c48..8ec0835 100644
--- a/docker/7.1-apache.Dockerfile
+++ b/docker/7.1-apache.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.1, Apache, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.1 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.1 \
         php7.1-phar \
         php7.1-bcmath \
         php7.1-calendar \
@@ -50,7 +54,8 @@ ENV \
         curl \
         ca-certificates \
         runit \
-        apache2"
+        apache2 \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-cgi.Dockerfile b/docker/7.1-cgi.Dockerfile
index a419af1..47baeda 100644
--- a/docker/7.1-cgi.Dockerfile
+++ b/docker/7.1-cgi.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CGI 7.1, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.1 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.1 \
         php7.1-phar \
         php7.1-bcmath \
         php7.1-calendar \
@@ -49,7 +53,8 @@ ENV \
         php7.1-cgi \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-cli.Dockerfile b/docker/7.1-cli.Dockerfile
index 0bb743a..eeef5aa 100644
--- a/docker/7.1-cli.Dockerfile
+++ b/docker/7.1-cli.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.1, additional PHP extensions, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.1 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.1 \
         php7.1-phar \
         php7.1-bcmath \
         php7.1-calendar \
@@ -47,7 +51,8 @@ ENV \
         php7.1-json \
         php7.1-posix \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-lighttpd.Dockerfile b/docker/7.1-lighttpd.Dockerfile
index c140be9..d574adc 100644
--- a/docker/7.1-lighttpd.Dockerfile
+++ b/docker/7.1-lighttpd.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.1, Lighttpd, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="lighttpd \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        lighttpd \
         php7.1 \
         php7.1-phar \
         php7.1-bcmath \
@@ -50,7 +54,8 @@ ENV \
         php7.1-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-litespeed.Dockerfile b/docker/7.1-litespeed.Dockerfile
index b68c396..4cdcb9d 100644
--- a/docker/7.1-litespeed.Dockerfile
+++ b/docker/7.1-litespeed.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.1, OpenLiteSpeed, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="curl \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        curl \
         ca-certificates \
         runit \
         php7.1 \
@@ -50,7 +54,8 @@ ENV \
         php7.1-json \
         php7.1-posix \
         php7.1-litespeed \
-        litespeed"
+        litespeed \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1-nginx.Dockerfile b/docker/7.1-nginx.Dockerfile
index 4381996..e60cc92 100644
--- a/docker/7.1-nginx.Dockerfile
+++ b/docker/7.1-nginx.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.1, Nginx, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="nginx \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        nginx \
         nginx-mod-http-headers-more \
         php7.1 \
         php7.1-phar \
@@ -51,7 +55,8 @@ ENV \
         php7.1-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.1.Dockerfile b/docker/7.1.Dockerfile
index 25c52a9..aa2687a 100644
--- a/docker/7.1.Dockerfile
+++ b/docker/7.1.Dockerfile
@@ -12,13 +12,18 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.1, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.1 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.1
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.1 \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-apache.Dockerfile b/docker/7.2-apache.Dockerfile
index cfc2628..07de2e7 100644
--- a/docker/7.2-apache.Dockerfile
+++ b/docker/7.2-apache.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.2, Apache, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.2 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.2 \
         php7.2-phar \
         php7.2-bcmath \
         php7.2-calendar \
@@ -50,7 +54,8 @@ ENV \
         curl \
         ca-certificates \
         runit \
-        apache2"
+        apache2 \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-cgi.Dockerfile b/docker/7.2-cgi.Dockerfile
index c24f4ab..5f5187d 100644
--- a/docker/7.2-cgi.Dockerfile
+++ b/docker/7.2-cgi.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CGI 7.2, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.2 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.2 \
         php7.2-phar \
         php7.2-bcmath \
         php7.2-calendar \
@@ -49,7 +53,8 @@ ENV \
         php7.2-cgi \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-cli.Dockerfile b/docker/7.2-cli.Dockerfile
index 4b799e0..65037d6 100644
--- a/docker/7.2-cli.Dockerfile
+++ b/docker/7.2-cli.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.2, additional PHP extensions, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.2 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.2 \
         php7.2-phar \
         php7.2-bcmath \
         php7.2-calendar \
@@ -47,7 +51,8 @@ ENV \
         php7.2-json \
         php7.2-posix \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-lighttpd.Dockerfile b/docker/7.2-lighttpd.Dockerfile
index 78990f8..f459480 100644
--- a/docker/7.2-lighttpd.Dockerfile
+++ b/docker/7.2-lighttpd.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.2, Lighttpd, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="lighttpd \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        lighttpd \
         php7.2 \
         php7.2-phar \
         php7.2-bcmath \
@@ -50,7 +54,8 @@ ENV \
         php7.2-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-litespeed.Dockerfile b/docker/7.2-litespeed.Dockerfile
index ef08c5a..ea5ff47 100644
--- a/docker/7.2-litespeed.Dockerfile
+++ b/docker/7.2-litespeed.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.2, OpenLiteSpeed, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="curl \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        curl \
         ca-certificates \
         runit \
         php7.2 \
@@ -50,7 +54,8 @@ ENV \
         php7.2-json \
         php7.2-posix \
         php7.2-litespeed \
-        litespeed"
+        litespeed \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2-nginx.Dockerfile b/docker/7.2-nginx.Dockerfile
index a7ffe4c..14a5e77 100644
--- a/docker/7.2-nginx.Dockerfile
+++ b/docker/7.2-nginx.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.2, Nginx, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="nginx \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        nginx \
         nginx-mod-http-headers-more \
         php7.2 \
         php7.2-phar \
@@ -51,7 +55,8 @@ ENV \
         php7.2-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.2.Dockerfile b/docker/7.2.Dockerfile
index d8fff79..4727810 100644
--- a/docker/7.2.Dockerfile
+++ b/docker/7.2.Dockerfile
@@ -12,13 +12,18 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.2, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.2 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.2
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.2 \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-apache.Dockerfile b/docker/7.3-apache.Dockerfile
index 4a3f291..70253b2 100644
--- a/docker/7.3-apache.Dockerfile
+++ b/docker/7.3-apache.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.3, Apache, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.3 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.3 \
         php7.3-phar \
         php7.3-bcmath \
         php7.3-calendar \
@@ -50,7 +54,8 @@ ENV \
         curl \
         ca-certificates \
         runit \
-        apache2"
+        apache2 \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-cgi.Dockerfile b/docker/7.3-cgi.Dockerfile
index c188270..38b64a1 100644
--- a/docker/7.3-cgi.Dockerfile
+++ b/docker/7.3-cgi.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CGI 7.3, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.3 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.3 \
         php7.3-phar \
         php7.3-bcmath \
         php7.3-calendar \
@@ -49,7 +53,8 @@ ENV \
         php7.3-cgi \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-cli.Dockerfile b/docker/7.3-cli.Dockerfile
index 8bc92f3..23eff6a 100644
--- a/docker/7.3-cli.Dockerfile
+++ b/docker/7.3-cli.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.3, additional PHP extensions, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.3 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.3 \
         php7.3-phar \
         php7.3-bcmath \
         php7.3-calendar \
@@ -47,7 +51,8 @@ ENV \
         php7.3-json \
         php7.3-posix \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-lighttpd.Dockerfile b/docker/7.3-lighttpd.Dockerfile
index db0448c..16bacc0 100644
--- a/docker/7.3-lighttpd.Dockerfile
+++ b/docker/7.3-lighttpd.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.3, Lighttpd, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="lighttpd \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        lighttpd \
         php7.3 \
         php7.3-phar \
         php7.3-bcmath \
@@ -50,7 +54,8 @@ ENV \
         php7.3-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-litespeed.Dockerfile b/docker/7.3-litespeed.Dockerfile
index 3496946..17876ac 100644
--- a/docker/7.3-litespeed.Dockerfile
+++ b/docker/7.3-litespeed.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.3, OpenLiteSpeed, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="curl \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        curl \
         ca-certificates \
         runit \
         php7.3 \
@@ -50,7 +54,8 @@ ENV \
         php7.3-json \
         php7.3-posix \
         php7.3-litespeed \
-        litespeed"
+        litespeed \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3-nginx.Dockerfile b/docker/7.3-nginx.Dockerfile
index f71b31c..ae41876 100644
--- a/docker/7.3-nginx.Dockerfile
+++ b/docker/7.3-nginx.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.3, Nginx, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="nginx \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        nginx \
         nginx-mod-http-headers-more \
         php7.3 \
         php7.3-phar \
@@ -51,7 +55,8 @@ ENV \
         php7.3-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.3.Dockerfile b/docker/7.3.Dockerfile
index 2063e0f..d6d1fcd 100644
--- a/docker/7.3.Dockerfile
+++ b/docker/7.3.Dockerfile
@@ -12,13 +12,18 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.3, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.3 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.3
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.3 \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-apache.Dockerfile b/docker/7.4-apache.Dockerfile
index 7ae40a5..249309c 100644
--- a/docker/7.4-apache.Dockerfile
+++ b/docker/7.4-apache.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.4, Apache, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.4 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.4 \
         php7.4-phar \
         php7.4-bcmath \
         php7.4-calendar \
@@ -50,7 +54,8 @@ ENV \
         curl \
         ca-certificates \
         runit \
-        apache2"
+        apache2 \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-cgi.Dockerfile b/docker/7.4-cgi.Dockerfile
index 852144e..d1a0e40 100644
--- a/docker/7.4-cgi.Dockerfile
+++ b/docker/7.4-cgi.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CGI 7.4, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.4 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.4 \
         php7.4-phar \
         php7.4-bcmath \
         php7.4-calendar \
@@ -49,7 +53,8 @@ ENV \
         php7.4-cgi \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-cli.Dockerfile b/docker/7.4-cli.Dockerfile
index edcde17..171ce82 100644
--- a/docker/7.4-cli.Dockerfile
+++ b/docker/7.4-cli.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.4, additional PHP extensions, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.4 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.4 \
         php7.4-phar \
         php7.4-bcmath \
         php7.4-calendar \
@@ -47,7 +51,8 @@ ENV \
         php7.4-json \
         php7.4-posix \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-lighttpd.Dockerfile b/docker/7.4-lighttpd.Dockerfile
index e9fed12..6c3a91e 100644
--- a/docker/7.4-lighttpd.Dockerfile
+++ b/docker/7.4-lighttpd.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.4, Lighttpd, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="lighttpd \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        lighttpd \
         php7.4 \
         php7.4-phar \
         php7.4-bcmath \
@@ -50,7 +54,8 @@ ENV \
         php7.4-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-litespeed.Dockerfile b/docker/7.4-litespeed.Dockerfile
index 18daeb2..1995620 100644
--- a/docker/7.4-litespeed.Dockerfile
+++ b/docker/7.4-litespeed.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.4, OpenLiteSpeed, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="curl \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        curl \
         ca-certificates \
         runit \
         php7.4 \
@@ -50,7 +54,8 @@ ENV \
         php7.4-json \
         php7.4-posix \
         php7.4-litespeed \
-        litespeed"
+        litespeed \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4-nginx.Dockerfile b/docker/7.4-nginx.Dockerfile
index f693d9e..27cc492 100644
--- a/docker/7.4-nginx.Dockerfile
+++ b/docker/7.4-nginx.Dockerfile
@@ -12,11 +12,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP 7.4, Nginx, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="nginx \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        nginx \
         nginx-mod-http-headers-more \
         php7.4 \
         php7.4-phar \
@@ -51,7 +55,8 @@ ENV \
         php7.4-fpm \
         curl \
         ca-certificates \
-        runit"
+        runit \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub
diff --git a/docker/7.4.Dockerfile b/docker/7.4.Dockerfile
index 8fec522..7d5df07 100644
--- a/docker/7.4.Dockerfile
+++ b/docker/7.4.Dockerfile
@@ -12,13 +12,18 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
       org.label-schema.description="Docker For PHP Developers - Docker image with PHP CLI 7.4, and Alpine" \
       org.label-schema.url="https://github.com/phpearth/docker-php"
 
-ENV \
-    # When using Composer, disable the warning about running commands as root/super user
-    COMPOSER_ALLOW_SUPERUSER=1 \
-    # Persistent runtime dependencies
-    DEPS="php7.4 \
+# PHP_INI_DIR to be symmetrical with official php docker image
+ENV PHP_INI_DIR /etc/php/7.4
+
+# When using Composer, disable the warning about running commands as root/super user
+ENV COMPOSER_ALLOW_SUPERUSER=1
+
+# Persistent runtime dependencies
+ARG DEPS="\
+        php7.4 \
         curl \
-        ca-certificates"
+        ca-certificates \
+"
 
 # PHP.earth Alpine repository for better developer experience
 ADD https://repos.php.earth/alpine/phpearth.rsa.pub /etc/apk/keys/phpearth.rsa.pub