Update Dockerfile

Author: mevdschee

Dockerfile

@@ -1,10 +1,8 @@
 FROM php:apache
 
-RUN docker-php-ext-install pdo pdo_mysql
-
 RUN apt-get update; \
     apt-get install -y libpq5 libpq-dev; \
-    docker-php-ext-install pdo pdo_pgsql; \
+    docker-php-ext-install pdo pdo_pgsql pdo_mysql; \
     apt-get autoremove --purge -y libpq-dev; \
     apt-get clean ; \
     rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*