11. 表单验证

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    public function rules()
    {
        if(something) {
            $rules = [
                'title' => 'required|min:3',
                'body' => 'required|min:4'
            ];
        }
        if(something) {
            $rules = [
                'title' => 'required|min:3',
                'body' => 'required|min:4'
            ];
        }

        return $rules;
    }

或者

   public function store(Request $request)
    {
        $this->validate($request, [
            'title' => 'required|min:3',
            'body' => 'required|min:3'
        ]);
        $input = $request->all();
       // dd($input);
        Article::create($input);
        return redirect('articles');
    }