- Revert the revert of these patches. This overloading can only be used

- by C extensions such as SimpleXML and *NOT* PHP code. Reasons given
- on the mailing list and problem with reentrancy inside the opcodes.

Zend/zend_API.c

@@ -315,10 +315,17 @@ static char *zend_parse_arg_impl(zval **arg, va_list *va, char **spec TSRMLS_DC)
 						*p = Z_STRVAL_PP(arg);
 						*pl = Z_STRLEN_PP(arg);
 						break;
+					case IS_OBJECT: {
+						if (Z_OBJ_HANDLER_PP(arg, cast_object)
+							&& Z_OBJ_HANDLER_PP(arg, cast_object)(*arg, *arg, IS_STRING, 0 TSRMLS_CC) == SUCCESS) {
+							*pl = Z_STRLEN_PP(arg);
+							*p = Z_STRVAL_PP(arg);
+							break;
+						}
+					}
 						
 					case IS_ARRAY:
 					case IS_RESOURCE:
-					case IS_OBJECT:
 					default:
 						return "string";
 				}

Zend/zend_operators.c

@@ -492,7 +492,6 @@ ZEND_API void _convert_to_string(zval *op ZEND_FILE_LINE_DC)
 			op->value.str.len = sizeof("Array")-1;
 			break;
 		case IS_OBJECT: {
-#if ANDI_0
 			TSRMLS_FETCH();
 			if (op->value.obj.handlers->cast_object) {
 				if (op->value.obj.handlers->cast_object(op, op, IS_STRING, 1 TSRMLS_CC) == SUCCESS) {
@@ -502,7 +501,6 @@ ZEND_API void _convert_to_string(zval *op ZEND_FILE_LINE_DC)
 			} else {
 				zend_error(E_NOTICE, "Object of class %s to string conversion", Z_OBJCE_P(op)->name);
 			}
-#endif
 			zval_dtor(op);
 			op->value.str.val = estrndup_rel("Object", sizeof("Object")-1);
 			op->value.str.len = sizeof("Object")-1;