<?php

 // User.php

class User extends Model

{

  const USER_STATUS_ACTIVED = ; //进行中

  const USER_TYPE_TEST = 'test';  //测试用户

  // 需要在控制器访问, 使用static

  public static function getUserStatus()

  {

    return self::USER_STATUS_ACTIVED;

  }

  public function getUserType()

  {

      return self::USER_TYPE_TEST;

  }

}

// UserController.php

use App\Models\User;

class UserController extends CommonController

{

  public function list()

  {

    // 方式一:

    $status = User::USER_STATUS_ACTIVED;

    User::getUserStatus();

    User::getUserType();  // error: Non-static method App\Models\User::getUserType() should not be called statically

    // 方式二:  可以使用

    $user = new User();

    $status = $user->USER_STATUS_ACTIVED;

    $user->getUserStatus();

    $user->getUserType();

  }

}