Arrange (#2499)

* unify php verson variable
* CASSANDRA move together
* unify all php base container

laravel-horizon/Dockerfile

@@ -4,11 +4,13 @@
 #--------------------------------------------------------------------------
 #
 
-ARG PHP_VERSION=${PHP_VERSION}
-FROM php:${PHP_VERSION}-alpine
+ARG LARADOCK_PHP_VERSION
+FROM php:${LARADOCK_PHP_VERSION}-alpine
 
 LABEL maintainer="Mahmoud Zalt <mahmoud@zalt.me>"
 
+ARG LARADOCK_PHP_VERSION
+
 # If you're in China, or you need to change sources, will be set CHANGE_SOURCE to true in .env.
 
 ARG CHANGE_SOURCE=false
@@ -63,12 +65,6 @@ RUN if [ ${INSTALL_PGSQL} = true ]; then \
   && docker-php-ext-install pdo_pgsql \
   ;fi
 
-# Install Cassandra drivers:
-ARG INSTALL_CASSANDRA=false
-RUN if [ ${INSTALL_CASSANDRA} = true ]; then \
-  apk --update add cassandra-cpp-driver \
-  ;fi
-
 # Install PhpRedis package:
 ARG INSTALL_PHPREDIS=false
 RUN if [ ${INSTALL_PHPREDIS} = true ]; then \
@@ -84,6 +80,12 @@ RUN if [ ${INSTALL_FFMPEG} = true ]; then \
     apk add ffmpeg \
 ;fi
 
+# Install Cassandra drivers:
+ARG INSTALL_CASSANDRA=false
+RUN if [ ${INSTALL_CASSANDRA} = true ]; then \
+  apk --update add cassandra-cpp-driver \
+  ;fi
+
 WORKDIR /usr/src
 RUN if [ ${INSTALL_CASSANDRA} = true ]; then \
   git clone https://github.com/datastax/php-driver.git \