Question

我的controller.php看起来像是：https://github.com/panique/mini/blob/master/application/core/controller.php

我的相册.php看起来像是：https://github.com/panique/mini/blob/master/application/controller/songs.php

专辑扩展控制器。我想“创建”客户端i controller.php，并能够在album.php中的所有功能中使用它

Controller.php这样

class Controller
{
    function __construct()
    {
        $this->openDatabaseConnection();
        $this->loadModel();
        $this->aws();
    }

    public function aws()
    {
         $client = S3Client::factory(array(
            'credentials' => array(
                'key'    => AWS_KEY,
                'secret' => AWS_SECRET,
                )
            ));
    }
}

album.php

class Album extends Controller
{
   public $client;

   function __construct($client)
   {
        parent::__construct();
        $this->client = $client;
   } 

   public function index()
    {
    //access $this-client here
    }

   public function myfunction()
    {
    //access $this-client here
    }
}

换句话说，我想在类album.php

中的所有函数中使用$ client

错误

未定义的变量：album.php中的客户端

Answer 1

像这样：

<?php 

class Controller
{

    public $client;
    public $dbConn;

    function __construct(DatabaseClass $dbConn)
    {
        // $this->openDatabaseConnection(); // Database connections should be passed in as a dependency via the construct, just a suggestion
        $this->dbConn = $dbConn;
        $this->loadModel(); 
        $this->aws();
    }

    public function aws()
    {
         $this->client = S3Client::factory(array(
            'credentials' => array(
                'key'    => AWS_KEY,
                'secret' => AWS_SECRET,
                )
            ));
    }
}

不需要在这里有$ client

class Album extends Controller
{

   function __construct()
   {
        parent::__construct();
   } 

   public function index()
    {
    //access $this-client here
    }

   public function myfunction()
    {
    //access $this->client here
    }
}

当我尝试将数组传递给扩展另一个的类时，未定义的变量

1 个答案: