Laravel 在更改新密码时检查旧密码

我想检查用户是否传递 new_password 输入作为当前密码，我想使用消息重定向：Your current password can't be with new password。我怎样才能检查这个？我想要系统更改用户密码，但我想要拒绝旧密码通过。我该怎么办？

if (!(Hash::check($request->old_password, Auth::user()->password))) {
    return response()->json(['errors' => ['Your current password can't be with new password']], 400);
}

代码不起作用。 我需要将旧密码写入数据库吗？

use Illuminate\Support\Facades\Hash;
$user = User::findOrFail($id);

/*
* Validate all input fields
*/
$this->validate($request, [
    'password' => 'required',
    'new_password' => 'confirmed|max:8|different:password',
]);

if (Hash::check($request->password, $user->password)) { 
   $user->fill([
    'password' => Hash::make($request->new_password)
    ])->save();

   $request->session()->flash('success', 'Password changed');
    return redirect()->route('your.route');

} else {
    $request->session()->flash('error', 'Password does not match');
    return redirect()->route('your.route');
}