anchor.diff:      docker-php-ext-install \
           zip; \
       pecl install \
  -        xdebug-2.7.2; \
  +        xdebug-2.9.1; \
       docker-php-ext-enable \
           xdebug; \
  -    php -r \
  -        "copy('https://getcomposer.org/installer', 'composer-setup.php');"; \
  -    php -r \
  -        "if (hash_file('sha384', 'composer-setup.php') === 'a5c698ffe4b8e849a443b120cd5ba38043260d5c4023dbf93e1558871f1f07f58274fc6f4c93bcfd858c6bd0775cd8d1') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"; \
  +    curl -fsSL \
  +        "https://composer.github.io/installer.sha384sum" \
  +        -o composer-setup.php.checksum; \
  +    curl -fsSL \
  +        "https://getcomposer.org/installer" \
  +        -o composer-setup.php; \
  +    sha384sum --check --strict \
  +        composer-setup.php.checksum; \
       php composer-setup.php --install-dir=/usr/bin --filename=composer; \
  -    php -r \
  -        "unlink('composer-setup.php');";
  -
  -RUN echo "memory_limit = -1" > /usr/local/etc/php/conf.d/zzz-idoitapi.ini;
  +    rm composer-setup.php*; \
  +    echo "memory_limit = -1" > /usr/local/etc/php/conf.d/zzz-idoitapi.ini;
   
   WORKDIR /usr/src
   
  
positive.code: RUN apt-get update; \
      apt-get full-upgrade -y; \
      apt-get install -y --no-install-recommends \
          libzip-dev \
          unzip \
      ; \
  
negative.code: FROM php:7.4-cli-buster
  
  ARG DEBIAN_FRONTEND=noninteractive
  
  