formsubmit/app/Http/Requests/FormdemoRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Request;

class FormdemoRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function demo(Request $request){
        return $request->pan;
    }

    public function rules(Request $request)
    {
        switch ($request->pan) {
            case '1':
                return [
                    'firstname' => 'required|max:20|regex:/\p{Han}/u',
                    'gj_num' => 'required|max:50|alpha_dash',
                    'phone' => 'required|regex:/^1[345789][0-9]{9}$/',
                    'note' => 'max:50',
                ];
            case '0':
                return [
                    'firstname' => 'required|max:20|regex:/\p{Han}/u',
                    'gj_num' => 'required|max:50|alpha_dash',
                    'hk-name' => 'required|max:20|regex:/\p{Han}/u',
                    'hk-date' => 'nullable|date_format:"Y-m-d"',
                    'hk-num' => 'required|min:0.01',
                    'title' => 'nullable|max:50|regex:/\p{Han}/u',
                    'ns-name' => 'required|max:20|regex:/\p{Han}/u',
                    'ns-num' => ['required'],
                    'ns-hang' => ['nullable', 'regex:/\p{Han}/u'],
                    'ns-account' => ['nullable', 'regex:/^([1-9])(\d|\d|\d)$/'],
                    'sj-name' => ['required', 'max:20', 'regex:/\p{Han}/u'],
                    'phone' => 'required|regex:/^1[345789][0-9]{9}$/',
                    'note' => 'max:50',
                ];
            default:
                return [];
        }
       
    }


    public function messages()
    {
             return [
                'required' => '这是一个必填项哦！',
                'alpha_dash' => '格式不正确哦',
                'firstname.regex' => '请输入汉字',
                'firstname.max' => '最大只能20个字',
                'gj_num.max' => '最多只能50个字',
                'hk-date.date_format' => '时间格式错误',
    //            'hk-num.numeric' => '请输入数字',
                'title.max' => '最多输入50个字',
                'title.regex' => '包含非法字符（请输入汉字）',
                'ns-name.max' => '只能输入20个字哦',
                'ns-name.regex' => '含有非法字符（请输入汉字）',
    //            'ns-num.regex' => '纳税人识别号格式出错！',
                'ns-hang.regex' => '银行名称填写出错',
                'ns-account.regex' => '银行账号填写出错！请检查',
                'sj-name.max' => '只能输入20个字哦',
                'sj-name.regex' => '包含非法字符（请填写汉字）',
                'note.max' => '最好只能留言50个字哦',
                'phone.regex' => '手机号码格式错误',
            ];
    }

    /*
     * 验证规则二
     *
     * */
    public function ruless()
    {
        
    }

    /*
     * 自定义错误信息二
     */
    public function messagess()
    {
       
    }
}