Changes

src/ORM/Collection.php

@@ -26,13 +26,11 @@ class Collection implements \Countable, \IteratorAggregate, \ArrayAccess
     }
 
     // https://www.php.net/manual/en/class.iteratoraggregate.php
-    public function getIterator()
+    public function getIterator(): \Generator
     {
-        return (function () {
-            while (list($key, $val) = each($this->items)) {
-                yield $key => $val;
-            }
-        })();
+        foreach ($this->items as $key => $val) {
+            yield $key => $val;
+        }
     }
 
     // https://www.php.net/manual/en/class.arrayaccess.php
@@ -120,7 +118,7 @@ class Collection implements \Countable, \IteratorAggregate, \ArrayAccess
             }
         }
 
-        return $this->items;
+        return $this;
     }
 
     function first()