add php role

defaults/main.yml

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+php_extention_enable: []

handlers/main.yml

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+---
+- name: reload_php_fpm
+  service: name=php-fpm state=restarted
+  become: yes

tasks/main.yml

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+---
+- name: Ensure php is installed.
+  pacman:
+    name: 
+      - php
+      - php-fpm
+    state: present
+  become: yes
+- name: Ensure php-fpm is started and enabled to start at boot.
+  service: name=php-fpm state=started enabled=yes
+  become: yes
+
+- name: enable php extetion
+  become: true
+  lineinfile:
+    dest: /etc/php/php.ini
+    regexp: ";extension={{item}}"
+    line: "extension={{item}}"
+  with_items: "{{php_extention_enable}}"
+  notify: reload_php_fpm