From 74d460ec5b99731e230522f356016fbc2bd7e500 Mon Sep 17 00:00:00 2001
From: Evgeniy Gavrilov <yev.gavrilov@gmail.com>
Date: Mon, 21 Dec 2020 22:40:36 +0300
Subject: [PATCH] Fix possible error code

Pseudo-type `iterable` accepts any `array` or `object` implementing the `Traversable` interface.  Constructor will be crashed when we try to pass array instead of `Traversable` and use `iterator_to_array`.
`iterator_to_array` dont work with arrays.
Then if always passing `Traversable` we could write like this:
```php
public function __construct(Traversable $handlers)
```
or check instance on `Traversable`.
---
 service_container/tags.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/service_container/tags.rst b/service_container/tags.rst
index 6783ef06d4e..76d4cb9792e 100644
--- a/service_container/tags.rst
+++ b/service_container/tags.rst
@@ -798,7 +798,7 @@ array element. For example, to retrieve the ``handler_two`` handler::
     {
         public function __construct(iterable $handlers)
         {
-            $handlers = iterator_to_array($handlers);
+            $handlers = $handlers instanceof \Traversable ? iterator_to_array($handlers) : $handlers;
 
             $handlerTwo = $handlers['handler_two'];
         }