Fix Bug #26976 (Can not access array elements using array indices)

return index 0 as non iterable object
update test

ext/simplexml/simplexml.c

@@ -191,21 +191,17 @@ static zval * sxe_prop_dim_read(zval *object, zval *member, zend_bool elements,
 					node = NULL;
 				}
 
-				if (node) {
-					node = node->next;
-				}
-
 				prefix = sxe->iter.nsprefix;
 
-				while (node && nodendx < Z_TYPE_P(member)) {
+				while (node && nodendx <= Z_LVAL_P(member)) {
 					SKIP_TEXT(node)
 					if (node->type == XML_ELEMENT_NODE) {
 						if (match_ns(sxe, node, prefix)) {
 							if (sxe->iter.type == SXE_ITER_ELEMENT && !xmlStrcmp(node->name, sxe->iter.name)) {
-								nodendx++;
-								if (nodendx == Z_TYPE_P(member)) {
+								if (nodendx == Z_LVAL_P(member)) {
 									break;
 								}
+								nodendx++;
 							}
 						} else {
 							break;
@@ -246,9 +242,6 @@ static zval * sxe_property_read(zval *object, zval *member, zend_bool silent TSR
  */
 static zval * sxe_dimension_read(zval *object, zval *offset TSRMLS_DC)
 {
-	if (Z_TYPE_P(offset) == IS_LONG && Z_LVAL_P(offset) == 0) {
-		return object;
-	}
 	return sxe_prop_dim_read(object, offset, 0, 1, 0 TSRMLS_CC);
 }
 /* }}} */

ext/simplexml/tests/015.phpt

@@ -41,15 +41,15 @@ object(simplexml_element)#4 (1) {
   [0]=>
   string(3) "Joe"
 }
-object(simplexml_element)#3 (1) {
+object(simplexml_element)#4 (1) {
   [0]=>
   string(3) "Joe"
 }
-object(simplexml_element)#2 (1) {
+object(simplexml_element)#1 (1) {
   [0]=>
   string(3) "Joe"
 }
-object(simplexml_element)#2 (1) {
+object(simplexml_element)#1 (1) {
   [0]=>
   string(3) "Boe"
 }