Fix SEND_UNPACK array separation

Separating only immutable arrays is not enough.

1 files changed, 36 insertions, 0 deletions

diff --git a/Zend/tests/arg_unpack/by_ref_separation.phpt b/Zend/tests/arg_unpack/by_ref_separation.phpt
new file mode 100644
index 0000000000..b52c28168a
--- /dev/null
+++ b/Zend/tests/arg_unpack/by_ref_separation.phpt
@@ -0,0 +1,36 @@
+--TEST--
+Array must be separated if unpacking by reference
+--FILE--
+<?php
+
+function inc(&... $args) {
+    foreach ($args as &$arg) {
+        $arg++;
+    }
+}
+
+$arr = [1, 2];
+$arr[] = 3;
+$arr2 = $arr;
+inc(...$arr);
+var_dump($arr);
+var_dump($arr2);
+
+?>
+--EXPECT--
+array(3) {
+  [0]=>
+  int(2)
+  [1]=>
+  int(3)
+  [2]=>
+  int(4)
+}
+array(3) {
+  [0]=>
+  int(1)
+  [1]=>
+  int(2)
+  [2]=>
+  int(3)
+}