Added PHP-FPM

Dockerfile

@@ -3,7 +3,10 @@ USER root
 WORKDIR /var/www
 
 # MySQL 5.7 (Homefully not version 8...)
-RUN apt-get update && apt-get install mysql-server nginx -y \
+RUN apt-get update && apt-get install -y \
+    mysql-server \
+    nginx \
+    php-fpm \
     && rm -rf /var/lib/apt/lists/*
 
 # Setting up MySQL --Will come back to later, as it's not necessary and not playing very well with automation