anchor.diff:  
   
   
  -##Real fails
  +##Real fails yii3
   ##RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii-dev
   ##RUN composer require --prefer-stable --update-with-all-dependencies yiisoft/yii-twig
   ##RUN composer require --prefer-stable --update-with-all-dependencies psr/http-factory-implementation
  
positive.code: ##RUN composer require --prefer-stable --update-with-all-dependencies psr/http-message-implementation
  
  ## real fails yii2 - not exist
  # RUN composer require --prefer-stable --update-with-all-dependencies codeception/specify
  
  # yii2
  
  # Not loaded from cache ???
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/base
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/verify
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/stub
  RUN composer require --prefer-stable --update-with-all-dependencies behat/gherkin
  RUN composer require --prefer-stable --update-with-all-dependencies phpunit/phpunit
  RUN composer require --prefer-stable --update-with-all-dependencies phpunit/php-invoker
  RUN composer require --prefer-stable --update-with-all-dependencies symfony/browser-kit
  
  RUN composer require --prefer-stable --update-with-all-dependencies true/punycode
  
  #Real conflicts with yii3
  # 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 install
  
negative.code: RUN composer require --prefer-stable --update-with-all-dependencies psr/http-server-handler
  RUN composer require --prefer-stable --update-with-all-dependencies psr/http-server-middleware
  
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/base
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/verify
  RUN composer require --prefer-stable --update-with-all-dependencies codeception/stub
  RUN composer require --prefer-stable --update-with-all-dependencies behat/gherkin
  RUN composer require --prefer-stable --update-with-all-dependencies phpunit/phpunit
  RUN composer require --prefer-stable --update-with-all-dependencies phpunit/php-invoker
  RUN composer require --prefer-stable --update-with-all-dependencies symfony/browser-kit
  
  RUN composer require --prefer-stable --update-with-all-dependencies true/punycode
  
  
  RUN if [ $(echo " $PHP_VERSION < 7.2" | bc) -eq 1 ] ; then echo "old php" && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2 && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap4 && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-debug && \ 
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-gii && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-app-basic && \ 
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-queue && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-swiftmailer && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-bootstrap && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/yii2-faker \
  ; else echo "new php" && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/di && \
   composer require --prefer-stable --update-with-all-dependencies yiisoft/view && \ 
  