crm/app/index/validate/Index.php

<?php

namespace app\index\validate;

use think\Validate;

class Index extends Validate
{
    // 验证规则
    protected $rule = [
        'name'      => 'require|chsAlphaNum|length:1,20',
        'phone'       => 'require|mobile',
    ];

    // 验证消息
    protected $message = [
        'name.require'  => '请填写姓名',
        'name.chsAlphaNum' => '姓名只可包含汉字、字母和数字',
        'name.length'   => '姓名限制20个字符',
        'phone.require'   => '请填写手机号',
        'phone.mobile' => '手机号格式错误',
        'mobile.require'   => '请填写手机号',
        'mobile.mobile' => '手机号格式错误',
    ];

    // 验证场景
    protected $scene = [
        'register'  =>  ['name', 'phone'],
        'signup'  =>  ['mobile']
    ];

}