Support null values

portphp · May 9, 2018 · 0dcc6d5 · 0dcc6d5
1 parent 03f59ad
commit 0dcc6d5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/Step/MappingStep.php b/src/Step/MappingStep.php
@@ -63,7 +63,7 @@ public function process($item, callable $next)
 
                 // Check if $item is an array, because properties can't be unset.
                 // So we don't call unset for objects to prevent side affects.
-                if (is_array($item) && isset($item[$from])) {
+                if (is_array($item) && array_key_exists($from, $item)) {
                     unset($item[$from]);
                 }
             }