Setup basic PHP 5.6 configuration

5.6-apache/Dockerfile

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+FROM php:5.6-apache
+
+# Install PHP extensions.
+RUN apt-get update && apt-get install -y \
+        libfreetype6-dev \
+        libicu-dev \
+        libjpeg62-turbo-dev \
+        libmcrypt-dev \
+        libmemcached-dev \
+        libmysqlclient18 \
+        libpng12-dev \
+        libpq-dev \
+        zlib1g-dev \
+    && docker-php-ext-install calendar iconv intl mbstring mcrypt mysql mysqli pdo_mysql pdo_pgsql pgsql zip \
+    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
+    && docker-php-ext-install gd \
+    && pecl install memcached redis \
+    && docker-php-ext-enable memcached.so redis.so
+
+CMD ["apache2-foreground"]