Can't upload multi image

i can't upload multi images in same field in database and same input this blade code

<input type="file" name="image1[]" multiple class="form-control" id="image1" placeholder="Insert Photo">

controller code

$this->Validate($request,[
            'image1' => 'required|mimes:jpeg,bmp,png,jpg'
            ]);
if($request->hasFile('image1'))
        {
            $image1 = $request->file('image1');
            $filename = time() . '.' .$image1->getClientOriginalExtension();
            $location = public_path('/images/post/'.$filename);
            Image::make($image1)->resize(400,400)->save($location);
            Image::make($image1)->save($location);
            $posts->image1 = $filename;
            dd($request->hasFile('image1'));
        }