FROM php:5.6-cli

RUN apt-get update \
    && apt-get install -y \
        zlib1g-dev \
    && rm -rf /var/lib/apt/lists/* \
    && docker-php-ext-install zip \
    && apt-get remove -y \
        zlib1g-dev \
    && apt-get install -y \
        zlib1g \
    && apt-get autoremove -y

CMD ["php"]