Codeigniter:从库类的核心文件夹扩展自定义库 - Codeigniter: Extend Custom library from core folder in a libary class

Codeigniter: Extend Custom library from core folder in a libary class

我在application/core文件夹中创建了一个名为MY_library的核心库，我正试图从application/libraries中的库类扩展它，但不幸的是，它找不到文件。

//application/core/My_Library.php
class My_Library{
    function __construct(){
    }
    /**
     * This is the generic function that calls php curl to make a query.
     * @param $url
     * @param array $data
     * @param string $type
     * @return mixed|string
     */
    public function callService($url,$data=array(),$type="get"){
        if (strtolower($type) == "get"){
            $url .= "?".http_build_query($data);
            $response = $this->doGet($url);
        }else if (strtolower($type) == "post"){
            $fields_string = http_build_query($data);
            $response = $this->doPost($url,$fields_string);
        }else{
            $response = "INVALID REQUEST";
        }
        return $response;
    }

}

In my application/libraries
class CakePixel extends MY_Library{
    function __construct(){
        parent::__construct();
    }
    public function fireCakePixel($cakeOfferId,$reqId,$transactionId){
        $cakeUrl = "http://oamtrk.com/p.ashx";
        $param = array(
            "o" =>  $cakeOfferId,
            "reqid" =>$reqId,
            "t"     => $transactionId
        );
        $response = $this->callService($cakeUrl,$param,"get");
    }
}

但我得到了一个致命的错误

PHP Fatal error:  Class 'MY_Library' not found in /application/libraries/cakeApi/pixel/CakePixel.php on line 10, referer:

如果可能的话，我如何在不使用require_one或include-from-class文件的情况下解决这个问题。

不应在core目录中加载库。core目录用于核心类或您希望控制器从中扩展的"父"控制器。您应该在Codeigniter的libraries目录中加载所有库，然后，在您的控制器中，您可以调用库中的函数，如下所示：

$this->load->library('my_library');
$results = $this->my_library->callService($params);

CI总是首先查找系统库（如果存在），然后在核心或应用程序下的库文件夹中查找MY_，系统或库目录中没有library.php，这就是为什么会出现此错误。如果您想从核心或库目录自动加载第三方库，您可以使用以下代码将其添加到底部或顶部的config.php中

spl_autoload_register(function($class)
{
    if (strpos($class, 'CI_') !== 0)
    {
        if (file_exists($file = APPPATH . 'core/' . $class . '.php'))
        {
            include $file;
        }
        elseif (file_exists($file = APPPATH . 'libraries/' . $class . '.php'))
        {
            include $file;
        }
    }
});