Use is_iterable().

loophp · Sep 1, 2019 · a07681b · a07681b
1 parent ccaa796
commit a07681b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Operation/Flatten.php b/src/Operation/Flatten.php
@@ -30,7 +30,7 @@ public function on(iterable $collection): \Closure
 
         return static function () use ($depth, $collection): \Generator {
             foreach ($collection as $value) {
-                if ((false === \is_array($value)) && (false === ($value instanceof \Traversable))) {
+                if (false === \is_iterable($value)) {
                     yield $value;
                 } elseif (1 === $depth) {
                     foreach ($value as $subValue) {