Index: Zend/zend_execute.c
===================================================================
RCS file: /repository/ZendEngine2/zend_execute.c,v
retrieving revision 1.716.2.12.2.7
diff -u -p -d -r1.716.2.12.2.7 zend_execute.c
--- Zend/zend_execute.c	27 May 2006 18:04:13 -0000	1.716.2.12.2.7
+++ Zend/zend_execute.c	31 May 2006 15:58:21 -0000
@@ -1015,6 +1015,18 @@ static void zend_fetch_dimension_address
 					zend_error_noreturn(E_ERROR, "[] operator not supported for strings");
 				}
 
+				switch(Z_TYPE_P(dim)) {
+					case IS_LONG:
+					case IS_STRING:
+					case IS_DOUBLE:
+					case IS_NULL:
+						/* do nothing */
+						break;
+					default:
+						zend_error(E_WARNING, "Illegal offset type");
+						break;
+				}
+
 				if (Z_TYPE_P(dim) != IS_LONG) {
 					tmp = *dim;
 					zval_copy_ctor(&tmp);