Index: Zend/zend_execute_API.c
===================================================================
--- Zend/zend_execute_API.c	(revision 308991)
+++ Zend/zend_execute_API.c	(working copy)
@@ -209,7 +209,7 @@
 
 static int zval_call_destructor(zval **zv TSRMLS_DC) /* {{{ */
 {
-	if (Z_TYPE_PP(zv) == IS_OBJECT && Z_REFCOUNT_PP(zv) == 1) {
+	if (Z_TYPE_PP(zv) == IS_OBJECT) {
 		return ZEND_HASH_APPLY_REMOVE;
 	} else {
 		return ZEND_HASH_APPLY_KEEP;
@@ -220,11 +220,7 @@
 void shutdown_destructors(TSRMLS_D) /* {{{ */
 {
 	zend_try {
-		int symbols;
-		do {
-			symbols = zend_hash_num_elements(&EG(symbol_table));
-			zend_hash_reverse_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
-		} while (symbols != zend_hash_num_elements(&EG(symbol_table)));
+		zend_hash_apply(&EG(symbol_table), (apply_func_t) zval_call_destructor TSRMLS_CC);
 		zend_objects_store_call_destructors(&EG(objects_store) TSRMLS_CC);
 	} zend_catch {
 		/* if we couldn't destruct cleanly, mark all objects as destructed anyway */