anchor.diff:  
   RUN echo "memory_limit=1024M" > /usr/local/etc/php/conf.d/memory-limit.ini
   
  +RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  +
   WORKDIR /var/www/html
   
   VOLUME /var/www/html/var
  
positive.code: 
  RUN curl -sS https://getcomposer.org/installer | php
  RUN mv composer.phar /usr/local/bin/composer
  RUN requirements="libpng12-dev libmcrypt-dev libmcrypt4 libcurl3-dev libfreetype6 libjpeg62-turbo libpng12-dev libfreetype6-dev libjpeg62-turbo-dev libicu-dev libxslt1-dev" \
      && apt-get update && apt-get install -y $requirements && rm -rf /var/lib/apt/lists/* \
      && docker-php-ext-install pdo_mysql \
      && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
  
negative.code: FROM alexcheng/apache2-php7
  
  MAINTAINER Fu Cheng <alexcheng1982@gmail.com>
  
  