PHP 5.6 CI

php5.6/Dockerfile

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+FROM debian:jessie
+
+# install the PHP extensions we need
+# see https://friendi.ca/resources/requirements/
+RUN set -ex; \
+        apt-get update; \
+        apt-get install -y php5-gd git curl \
+        php5-cli php5-curl php5-mcrypt php5-mysql wget make \
+        php5-redis php5-memcached php5-memcache php5-json php5-mcrypt \
+        ; \
+        rm -rf /var/lib/apt/lists/*;
+
+RUN php5enmod curl pdo pdo_mysql gd opcache json mcrypt
+RUN curl -O -L https://phar.phpunit.de/phpunit-5.5.4.phar; \
+    chmod +x phpunit-5.5.4.phar; \
+    mv phpunit-5.5.4.phar /usr/local/bin/phpunit;