Laravel上传文件方法

public function upload(Request $request){

$imgs = [];
if ($request->hasFile('upload_img')){
    foreach ($request->file('upload_img') as $v){
        $time      = strtotime(date("Y-m-d 00:00:00"));
        $path = $v->move(public_path().'/upload/'.$time,$v->hashName());
        dump($path->getRealPath());die;
        $imgs[]= asset($path);
    }
    return response()->json([
        'errno'=>0,
        'data'=>$imgs
    ]);
}else{
    return response()->json([
        'info'=>'没有图片'
    ]);
}

}