How To Define A Callable Variable For A Class

Yii 2.0 General Discussions
1

When I use yii\filters\auth\HttpBasicAuth,

I want to custom public $auth which is @var callable,

but how to define it with below code?




     * The following code is a typical implementation of this callable:

     *

     * ```php

     * function ($username, $password) {

     *     return \app\models\User::findOne([

     *         'username' => $username,

     *         'password' => $password,

     *     ]);

     * }

     * ```

why can’t I define it like this (error report):




	public $auth=function ($username, $password) {

		return \app\models\User2::findOne([

			'username' => $username,

			'password_hash' => $password,

	]);
2

you can do it in init()





    public function init() {

        parent::init();

        $this->auth = $this->yourFunctionName();

    }