Shoehorn myself into the credits.

ext/filter/CREDITS

@@ -1,2 +1,2 @@
 Input Filter
-Rasmus Lerdorf, Derick Rethans, Pierre-Alain Joye
+Rasmus Lerdorf, Derick Rethans, Pierre-Alain Joye, Ilia Alshanetsky

ext/filter/filter.c

@@ -533,6 +533,10 @@ static void php_filter_call(zval **filtered, long filter, zval **filter_args, co
 		if (zend_hash_find(HASH_OF(*filter_args), "flags", sizeof("flags"), (void **)&option) == SUCCESS) {
 			convert_to_long(*option);
 			filter_flags = Z_LVAL_PP(option);
+
+			if (!(filter_flags & FILTER_REQUIRE_ARRAY ||  filter_flags & FILTER_FORCE_ARRAY)) {
+				filter_flags |= FILTER_REQUIRE_SCALAR;
+			}
 		}
 
 		if (zend_hash_find(HASH_OF(*filter_args), "options", sizeof("options"), (void **)&option) == SUCCESS) {

ext/filter/package.xml

@@ -7,6 +7,12 @@
 of filters and mechanisms that users can use to safely access their input data.
  
  </description>
+  <lead>
+    <name>Ilia Alshanetsky</name>
+    <user>iliaa</user>
+    <email>iliaa@php.net</email>
+    <active>yes</active>
+  </lead>
   <lead>
     <name>Pierre-Alain Joye</name>
     <user>pajoye</user>