Fix compatibility on optional key on array dim fetch to be Mixed on phpstan patch 2.1.x-dev (#8008)

samsonasik · web-flow · commit b095655ec65e · 2026-05-25T06:37:44.000+07:00
diff --git a/src/NodeTypeResolver/NodeTypeResolver.php b/src/NodeTypeResolver/NodeTypeResolver.php
@@ -415,7 +415,7 @@ private function resolveArrayDimFetchType(
                 continue;
             }
 
-            return $originalNativeType;
+            return new MixedType();
         }
 
         return $type;

Original file line number	Diff line number	Diff line change
`@@ -415,7 +415,7 @@ private function resolveArrayDimFetchType(`
`415`	`415`	`continue;`
`416`	`416`	`}`
`417`	`417`
`418`		`- return $originalNativeType;`
	`418`	`+ return new MixedType();`
`419`	`419`	`}`
`420`	`420`
`421`	`421`	`return $type;`