I'm trying to test some PHP code on PHP 5.3 with the GMP extension installed. Here's my Dockerfile:
FROM php:5.3
RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7638D0442B90D010 AA8E81B4331F7F50 9D6D8F6BC857C906 \
&& apt-get update \
&& apt-get -y install libgmp-dev \
&& docker-php-ext-install gmp
When I try to build that I get an error about how docker-php-ext-install
doesn't exist.
Here's my second attempt:
FROM php:5.3
RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7638D0442B90D010 AA8E81B4331F7F50 9D6D8F6BC857C906 \
&& apt-get update \
&& apt-get -y install php5-gmp
That builds without issue but apparently that doesn't actually result in PHP having the GMP extension. I thought maybe I'd need to add extension=gmp.so
to the php.ini file but it's not immediately clear to me where that file lives. php -i | grep ini
returns, among other things, this:
Configuration File (php.ini) Path => /usr/local/lib
But there's no php.ini file in that directory. I tried to create one but still no luck.
Per chance there's a PHP 5.3 image floating around that already has the GMP extension installed?