anchor.diff:   composer require --prefer-stable --update-with-all-dependencies yiisoft/router && \ 
    composer require --prefer-stable --update-with-all-dependencies yiisoft/router-fastroute && \ 
    composer require --prefer-stable --update-with-all-dependencies yiisoft/yii-project-template  && \ 
  -
  + composer require --prefer-stable --update-with-all-dependencies yiisoft/var-dumper  && \ 
   ; fi
   
   
  
positive.code: # also needs mcrypt, php < 7.2
  
  ###Possible Conflicts with yii3
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-debug 
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-gii
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-app-basic 
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-queue
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-swiftmailer
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap
  ###RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-faker
  RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap4
  RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap3
  
  
negative.code: 
  
  RUN composer require --prefer-stable --update-with-all-dependencies ezyang/htmlpurifier
  RUN composer require --prefer-stable --update-with-all-dependencies ext-intl
  ##RUN composer require --prefer-stable --update-with-all-dependencies vlucas/phpdotenv
  
  RUN composer require --prefer-stable --update-with-all-dependencies twig/twig
  RUN composer require --prefer-stable --update-with-all-dependencies psr/container
  
  RUN composer require --prefer-stable --update-with-all-dependencies psr/http-factory
  