Use PHP8

https://www.php.net/releases/8.0/en.php

Author: macbre

Dockerfile

@@ -10,48 +10,48 @@ RUN pip install virtualenv && rm -rf /root/.cache
 # copy composer from the first stage
 COPY --from=php-composer /usr/bin/composer /usr/bin
 
-# set up PHP 7.4 packages repository
+# set up PHP 8.0 packages repository
 # @see https://github.com/codecasts/php-alpine
 ADD https://dl.bintray.com/php-alpine/key/php-alpine.rsa.pub /etc/apk/keys/php-alpine.rsa.pub
-RUN echo "https://dl.bintray.com/php-alpine/v3.10/php-7.4" >> /etc/apk/repositories
+RUN echo "https://dl.bintray.com/php-alpine/v3.12/php-8.0" >> /etc/apk/repositories
 
 # install dependencies
 RUN apk update && apk add \
-	php7 \
-	php7-bz2 \
-	php7-calendar \
-	php7-curl \
-	php7-ctype \
-	php7-exif \
-	php7-ftp \
-	php7-gettext \
-	php7-iconv \
-	php7-json \
-	php7-mbstring \
-	php7-opcache \
-	php7-openssl \
-	php7-pcntl \
-	php7-pdo \
-	php7-phar \
-	php7-posix \
-	php7-session \
-	php7-shmop \
-	php7-soap \
-	php7-sockets \
-	php7-sodium \
-	php7-sysvmsg \
-	php7-sysvsem \
-	php7-sysvshm \
-	php7-xmlreader \
-	php7-xml \
-	php7-xsl \
-	php7-zlib \
+	php8 \
+	php8-bz2 \
+	php8-calendar \
+	php8-curl \
+	php8-ctype \
+	php8-exif \
+	php8-ftp \
+	php8-gettext \
+	php8-iconv \
+	php8-json \
+	php8-mbstring \
+	php8-opcache \
+	php8-openssl \
+	php8-pcntl \
+	php8-pdo \
+	php8-phar \
+	php8-posix \
+	php8-session \
+	php8-shmop \
+	php8-soap \
+	php8-sockets \
+	php8-sodium \
+	php8-sysvmsg \
+	php8-sysvsem \
+	php8-sysvshm \
+	php8-xmlreader \
+	php8-xml \
+	php8-xsl \
+	php8-zlib \
 	# see https://github.com/elecena/python-php/issues/8
 	# The problem seems to be that iconv in musl is not implemented to support that conversion, when using GNU iconv it works.
 	gnu-libiconv \
 	&& rm -rf /tmp/* /var/log/* /var/cache/*
 
-ENV PHP_VERSION 7.4.3
+ENV PHP_VERSION 8.0.0
 
 # use GNU iconv in php
 ENV LD_PRELOAD="/usr/lib/preloadable_libiconv.so php-fpm7 php7"