ThinkPHP-表单验证和错误提示（二）

<?php
namespace app\index\validate;

use think\Validate;

class User extends Validate
{
    protected $rule = [
        'username' => 'require|max:20',
        'password' => 'require|min:6',
        'email' => 'require|email'
    ];

    protected $message = [
        'username.require' => '用户名不能为空',
        'username.max' => '用户名不能超过20个字符',
        'password.require' => '密码不能为空',
        'password.min' => '密码不能少于6个字符',
        'email.require' => '邮箱不能为空',
        'email.email' => '邮箱格式不正确'
    ];

    protected $scene = [
        'register' => ['username', 'password', 'email'],
        'update' => ['username', 'email']
    ];
}

<?php
namespace app\index\controller;

use app\index\validate\User;
use think\Controller;
use think\Request;

class UserController extends Controller
{
    public function register(Request $request)
    {
        $data = $request->param();

        $validate = new User;
        if (!$validate->scene('register')->check($data)) {
            $this->error($validate->getError());
        }

        // 将数据保存到数据库或进行其他操作
    }

    public function update(Request $request)
    {
        $data = $request->param();

        $validate = new User;
        if (!$validate->scene('update')->check($data)) {
            $this->error($validate->getError());
        }

        // 更新用户信息
    }
}