Make PHPFUNC advanced option

Author: jvazquez-r7

modules/exploits/unix/webapp/freepbx_config_exec.rb

@@ -44,8 +44,12 @@ def initialize(info={})
 
       register_options(
         [
-          OptString.new('TARGETURI', [true, 'The base path to the FreePBX installation', '/']),
-          OptString.new('PHPFUNC', [true, 'The PHP execution function to use', 'passthru']),
+          OptString.new('TARGETURI', [true, 'The base path to the FreePBX installation', '/'])
+        ], self.class)
+
+      register_advanced_options(
+        [
+          OptString.new('PHPFUNC', [true, 'The PHP execution function to use', 'passthru'])
         ], self.class)
   end