Add php_apc_enabled_in_ini option.

README.md

@@ -18,6 +18,10 @@ Available variables are listed below, along with default values (see `vars/main.
 
 Some commonly-adjusted PHP ini directives. Adjust to suit your system.
 
+    php_apc_enabled_in_ini: false
+
+When installing APC, depending on the system and whether running PHP as a webserver module or standalone via `php-fpm`, you might need the line `extension=apc.so` in `apc.ini`. If you need that line added, set this variable to true.
+
     php_apc_cache_by_default: "1"
     php_apc_shm_size: "96M"
 

defaults/main.yml

@@ -4,6 +4,7 @@ php_enablerepo: ""
 php_memory_limit: "256M"
 php_max_execution_time: "60"
 php_upload_max_filesize: "64M"
+php_apc_enabled_in_ini: false
 php_apc_cache_by_default: "1"
 php_apc_shm_size: "96M"
 php_date_timezone: "America/Chicago"

templates/apc.ini.j2

@@ -1,3 +1,6 @@
+{% if php_apc_enabled_in_ini %}
+extension=apc.so
+{% endif %}
 apc.shm_size={{ php_apc_shm_size }}
 apc.enable_cli=0
 apc.rfc1867=1