Add locales & environment variables LANG / LC_ALL

Author: philippgitpush

docker/php/Dockerfile

@@ -6,6 +6,11 @@ RUN apt-get update && apt-get install -y \
 		libpng-dev \
 		libzip-dev \
 		zip \
+		locales \
 		&& docker-php-ext-configure gd --with-freetype --with-jpeg \
 		&& docker-php-ext-install -j$(nproc) gd pdo pdo_mysql zip mysqli
-RUN a2enmod rewrite
+RUN locale-gen C.UTF-8
+RUN a2enmod rewrite
+
+ENV LANG C.UTF-8
+ENV LC_ALL C.UTF-8