add php to webservers

roles/webserver/tasks/install_php.yml

@@ -0,0 +1,6 @@
+- name: webserver | apache | installing php
+  package:
+    name:
+      - php
+      - php-mysqli
+    state: latest

roles/webserver/tasks/main.yml

@@ -14,6 +14,7 @@
     when:
       - nginx is defined
       - nginx == true
+  - import_tasks: install_php.yml
   - name: webserver | certbot | install certbot
     package:
       name: certbot