Improve iter tests

Author: iluuu1994

Zend/tests/data_classes/iter.phpt

@@ -12,22 +12,73 @@ $box = new Box();
 $box->value = 1;
 $copy = $box;
 
+echo "Iteration by value\n";
+
 foreach ($box as $value) {
     var_dump($value);
 }
 
+echo "\nIteration by ref\n";
+
 foreach ($box as $prop => &$value) {
-    if ($box->value === 1) {
+    if ($prop === 'value' && $value === 1) {
         $box->dynamic = 1;
     }
     $value++;
-    var_dump($prop, $value);
+    var_dump($value);
 }
 
+echo "\nIteration by ref on copy\n";
+
+$copy2 = $copy;
+$copy2Ref = &$copy2;
+
+foreach ($copy2Ref as $prop => &$value) {
+    $value++;
+    var_dump($value);
+}
+
+echo "\nIteration by ref on ref with separation\n";
+
+function &getBox() {
+    global $box;
+    $box2 = $box;
+    return $box2;
+}
+
+foreach (getBox() as $prop => &$value) {
+    $value++;
+    var_dump($value);
+}
+
+echo "\nDone\n";
+
+var_dump($box, $copy);
+
 ?>
 --EXPECT--
+Iteration by value
 int(1)
-string(5) "value"
+
+Iteration by ref
 int(2)
-string(7) "dynamic"
 int(2)
+
+Iteration by ref on copy
+int(2)
+
+Iteration by ref on ref with separation
+int(3)
+int(3)
+
+Done
+object(Box)#2 (2) {
+  ["value"]=>
+  int(2)
+  ["dynamic"]=>
+  int(2)
+}
+object(Box)#1 (1) {
+  ["value"]=>
+  int(1)
+}