[7.x] Add isNotFilled() method to Request (#33732)

* [7.x] Add empty() method to Request

* Change to isNotFilled

src/Illuminate/Http/Concerns/InteractsWithInput.php

@@ -125,6 +125,25 @@ public function filled($key)
         return true;
     }
 
+    /**
+     * Determine if the request contains an empty value for an input item.
+     *
+     * @param  string|array  $key
+     * @return bool
+     */
+    public function isNotFilled($key)
+    {
+        $keys = is_array($key) ? $key : func_get_args();
+
+        foreach ($keys as $value) {
+            if (! $this->isEmptyString($value)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
     /**
      * Determine if the request contains a non-empty value for any of the given inputs.
      *

tests/Http/HttpRequestTest.php

@@ -368,6 +368,23 @@ public function testFilledMethod()
         $this->assertTrue($request->filled('foo.bar'));
     }
 
+    public function testIsNotFilledMethod()
+    {
+        $request = Request::create('/', 'GET', ['name' => 'Taylor', 'age' => '', 'city' => null]);
+        $this->assertFalse($request->isNotFilled('name'));
+        $this->assertTrue($request->isNotFilled('age'));
+        $this->assertTrue($request->isNotFilled('city'));
+        $this->assertTrue($request->isNotFilled('foo'));
+        $this->assertFalse($request->isNotFilled(['name', 'email']));
+        $this->assertTrue($request->isNotFilled(['foo', 'age']));
+        $this->assertTrue($request->isNotFilled(['age', 'city']));
+
+        $request = Request::create('/', 'GET', ['foo' => ['bar', 'baz' => '0']]);
+        $this->assertFalse($request->isNotFilled('foo'));
+        $this->assertTrue($request->isNotFilled('foo.bar'));
+        $this->assertFalse($request->isNotFilled('foo.baz'));
+    }
+
     public function testFilledAnyMethod()
     {
         $request = Request::create('/', 'GET', ['name' => 'Taylor', 'age' => '', 'city' => null]);