Index: Zend/zend.c
===================================================================
RCS file: /repository/ZendEngine2/zend.c,v
retrieving revision 1.308.2.12.2.17
diff -u -p -d -r1.308.2.12.2.17 zend.c
--- Zend/zend.c	19 Aug 2006 16:20:08 -0000	1.308.2.12.2.17
+++ Zend/zend.c	11 Sep 2006 13:17:03 -0000
@@ -503,6 +503,7 @@ static void executor_globals_ctor(zend_e
 	EG(current_execute_data) = NULL;
 	EG(current_module) = NULL;
 	EG(exit_status) = 0;
+	EG(active) = 0;
 }
 
 
Index: Zend/zend_execute_API.c
===================================================================
RCS file: /repository/ZendEngine2/zend_execute_API.c,v
retrieving revision 1.331.2.20.2.5
diff -u -p -d -r1.331.2.20.2.5 zend_execute_API.c
--- Zend/zend_execute_API.c	12 Jul 2006 07:54:00 -0000	1.331.2.20.2.5
+++ Zend/zend_execute_API.c	11 Sep 2006 13:17:04 -0000
@@ -188,6 +188,8 @@ void init_executor(TSRMLS_D)
 	EG(scope) = NULL;
 
 	EG(This) = NULL;
+
+	EG(active) = 1;
 }
 
 static int zval_call_destructor(zval **zv TSRMLS_DC)
@@ -316,6 +318,7 @@ void shutdown_executor(TSRMLS_D)
 			FREE_HASHTABLE(EG(in_autoload));
 		}
 	} zend_end_try();
+	EG(active) = 0;
 }
 
 
@@ -580,6 +583,10 @@ int call_user_function_ex(HashTable *fun
 {
 	zend_fcall_info fci;
 
+	if (!EG(active)) {
+		return FAILURE;
+	}
+
 	fci.size = sizeof(fci);
 	fci.function_table = function_table;
 	fci.object_pp = object_pp;
Index: Zend/zend_globals.h
===================================================================
RCS file: /repository/ZendEngine2/zend_globals.h,v
retrieving revision 1.141.2.3.2.5
diff -u -p -d -r1.141.2.3.2.5 zend_globals.h
--- Zend/zend_globals.h	18 Jul 2006 09:06:33 -0000	1.141.2.3.2.5
+++ Zend/zend_globals.h	11 Sep 2006 13:17:04 -0000
@@ -237,6 +237,8 @@ struct _zend_executor_globals {
 
 	zend_property_info std_property_info;
 
+	zend_bool active; 
+
 	void *reserved[ZEND_MAX_RESERVED_RESOURCES];
 };