Fixes #14: PHP version 5.6 installs PHP 7.2 on Ubuntu.

README.md

@@ -16,6 +16,10 @@ Available variables are listed below, along with default values (see `defaults/m
 
 The PHP version to be installed. Any [currently-supported PHP major version](http://php.net/supported-versions.php) is a valid option (e.g. `5.6`, `7.0`, `7.1`, etc.
 
+    php_versions_install_recommends: no
+
+(For Debian OSes only) Whether to install recommended packages. This is set to `no` by default because setting it to `yes` often leads to multiple PHP versions being installed (thus making a bit of a mess) when using repos like Ondrej's PHP PPA for Ubuntu.
+
 ## Dependencies
 
   - geerlingguy.php is a soft dependency as the `php_version` variable is required to be set.

defaults/main.yml

@@ -1,3 +1,6 @@
 ---
 # The PHP version to be installed.
 php_version: '7.1'
+
+# For Debian OSes only.
+php_versions_install_recommends: no

tasks/main.yml

@@ -26,6 +26,10 @@
     php_xhprof_module_path: __php_xhprof_module_path
     php_packages: __php_packages
 
+- name: Define php_install_recommends variable.
+  set_fact:
+    php_install_recommends: "{{ php_versions_install_recommends }}"
+
 # Setup tasks.
 - include_tasks: "setup-{{ ansible_os_family }}.yml"