Fixed bug that Arr::forget failed when the integer key does not exists.

CHANGELOG-2.1.md

@@ -1,5 +1,9 @@
 # v2.1.10 - TBD
 
+## Fixed
+
+- [#3348](https://github.com/hyperf/hyperf/pull/3348) Fixed bug that `Arr::forget` failed when the integer key does not exists.
+
 # v2.1.9 - 2021-03-08
 
 ## Fixed

src/utils/src/Arr.php

@@ -205,7 +205,7 @@ public static function forget(array &$array, $keys): void
                 unset($array[$key]);
                 continue;
             }
-            $parts = explode('.', $key);
+            $parts = explode('.', (string) $key);
             // clean up before each pass
             $array = &$original;
             while (count($parts) > 1) {

src/utils/tests/ArrTest.php

@@ -141,4 +141,33 @@ public function testArrMerge()
         $result = Arr::merge($result, $array2);
         $this->assertSame($array1, $result);
     }
+
+    public function testArrorForget()
+    {
+        $data = [1, 2];
+        Arr::forget($data, [1]);
+        $this->assertSame([1], $data);
+
+        $data = ['id' => 1, 'name' => 'Hyperf'];
+        Arr::forget($data, ['gender']);
+        $this->assertSame(['id' => 1, 'name' => 'Hyperf'], $data);
+        Arr::forget($data, ['id']);
+        $this->assertSame(['name' => 'Hyperf'], $data);
+
+        $data = ['id' => 1, 'name' => 'Hyperf', 'data' => ['id' => 2], 'data.name' => 'Swoole'];
+        Arr::forget($data, ['data.gender']);
+        $this->assertSame(['id' => 1, 'name' => 'Hyperf', 'data' => ['id' => 2], 'data.name' => 'Swoole'], $data);
+        Arr::forget($data, ['data.name']);
+        $this->assertSame(['id' => 1, 'name' => 'Hyperf', 'data' => ['id' => 2]], $data);
+        Arr::forget($data, ['data.id']);
+        $this->assertSame(['id' => 1, 'name' => 'Hyperf', 'data' => []], $data);
+
+        $data = ['data' => ['data' => ['id' => 1, 'name' => 'Hyperf']]];
+        Arr::forget($data, ['data.data.id']);
+        $this->assertSame(['data' => ['data' => ['name' => 'Hyperf']]], $data);
+
+        $data = [1, 2];
+        Arr::forget($data, [2]);
+        $this->assertSame([1, 2], $data);
+    }
 }