diff -ru php5.2-200808081630/ext/mbstring/mb_gpc.c php5.2-200808081630.orig/ext/mbstring/mb_gpc.c
--- php5.2-200808081630/ext/mbstring/mb_gpc.c	2007-12-31 16:33:30.000000000 +0900
+++ php5.2-200808081630.orig/ext/mbstring/mb_gpc.c	2008-08-10 21:02:03.842245152 +0900
@@ -154,8 +154,6 @@
 	info.num_from_encodings     = MBSTRG(http_input_list_size); 
 	info.from_language          = MBSTRG(language);
 
-	MBSTRG(illegalchars) = 0;
-
 	detected = _php_mb_encoding_handler_ex(&info, array_ptr, res TSRMLS_CC);
 	MBSTRG(http_input_identify) = detected;
 
diff -ru php5.2-200808081630/ext/mbstring/mbstring.c php5.2-200808081630.orig/ext/mbstring/mbstring.c
--- php5.2-200808081630/ext/mbstring/mbstring.c	2008-08-05 07:38:30.000000000 +0900
+++ php5.2-200808081630.orig/ext/mbstring/mbstring.c	2008-08-10 21:08:44.218284734 +0900
@@ -930,6 +930,7 @@
 		sapi_register_post_entries(mbstr_post_entries TSRMLS_CC);
 		sapi_register_treat_data(mbstr_treat_data);
 	}
+	MBSTRG(illegalchars) = 0;
 
 	REGISTER_LONG_CONSTANT("MB_OVERLOAD_MAIL", MB_OVERLOAD_MAIL, CONST_CS | CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("MB_OVERLOAD_STRING", MB_OVERLOAD_STRING, CONST_CS | CONST_PERSISTENT);
@@ -977,8 +978,6 @@
 	MBSTRG(current_filter_illegal_mode) = MBSTRG(filter_illegal_mode);
 	MBSTRG(current_filter_illegal_substchar) = MBSTRG(filter_illegal_substchar);
 
-	MBSTRG(illegalchars) = 0;
-
 	n = 0;
 	if (MBSTRG(detect_order_list)) {
 		list = MBSTRG(detect_order_list);
@@ -1077,6 +1076,8 @@
 	PHP_RSHUTDOWN(mb_regex) (INIT_FUNC_ARGS_PASSTHRU);
 #endif
 
+	MBSTRG(illegalchars) = 0;
+
 	return SUCCESS;
 }
 /* }}} */