Implement variadic function syntax

As per RFC: https://wiki.php.net/rfc/variadics

1 files changed, 49 insertions, 0 deletions

diff --git a/Zend/tests/variadic/optional_params.phpt b/Zend/tests/variadic/optional_params.phpt
new file mode 100644
index 0000000000..ba965e538c
--- /dev/null
+++ b/Zend/tests/variadic/optional_params.phpt
@@ -0,0 +1,49 @@
+--TEST--
+Optional parameter before variadic parameter
+--FILE--
+<?php
+
+function fn($reqParam, $optParam = null, ...$params) {
+    var_dump($reqParam, $optParam, $params);
+}
+ 
+fn(1);
+fn(1, 2);
+fn(1, 2, 3);
+fn(1, 2, 3, 4);
+fn(1, 2, 3, 4, 5);
+
+?>
+--EXPECT--
+int(1)
+NULL
+array(0) {
+}
+int(1)
+int(2)
+array(0) {
+}
+int(1)
+int(2)
+array(1) {
+  [0]=>
+  int(3)
+}
+int(1)
+int(2)
+array(2) {
+  [0]=>
+  int(3)
+  [1]=>
+  int(4)
+}
+int(1)
+int(2)
+array(3) {
+  [0]=>
+  int(3)
+  [1]=>
+  int(4)
+  [2]=>
+  int(5)
+}