PHP 7.3 v2 Specialization (#1110)

* Added support for PHP 7.3 v2 Specialization
* Add builder dockerfile for PHP7
* Support mcrypt in PHP 7.3

environments/php7/Dockerfile

@@ -1,15 +1,10 @@
-FROM php:7.1-alpine
+FROM php:7.3-alpine
 
 ENV PATH="/root/.composer/vendor/bin:${PATH}" \
     COMPOSER_ALLOW_SUPERUSER=1
 
-RUN echo '#!/bin/sh' > /usr/local/bin/apk-install \
-    && echo 'apk add --update "$@" && rm -rf /var/cache/apk/*' >> /usr/local/bin/apk-install \
-    && chmod +x /usr/local/bin/apk-install
-
 RUN echo 'http://dl-4.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories \
-    && apk update \
-    && apk-install \
+    && apk --no-cache add \
     git \
     curl \
     curl-dev \
@@ -26,11 +21,14 @@ RUN echo 'http://dl-4.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositor
     vim \
     libxml2-dev \
     freetype-dev \
+    libzip-dev \
     unzip \
     libc6-compat \
     openssl \
     gcc \
-    autoconf
+    autoconf \
+    make \
+    libc-dev
 
 RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/
 
@@ -47,7 +45,6 @@ RUN docker-php-ext-install \
     gettext \
     intl \
     json \
-    mcrypt \
     mysqli \
     pgsql \
     pcntl \
@@ -60,6 +57,11 @@ RUN docker-php-ext-install \
     xmlrpc \
     zip
 
+RUN pecl install \
+    mcrypt-1.0.2
+RUN docker-php-ext-enable \
+    mcrypt
+
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
 
 COPY . /app
@@ -70,4 +72,4 @@ RUN composer install
 EXPOSE 8888
 
 ENTRYPOINT ["php"]
-CMD ["-S","0.0.0.0:8888","index.php"]
+CMD ["server.php"]