CodeIgniter创建新的自定义异常

我想创建一个自定义异常，以基于$_FILES[..]['error']代码返回正确的消息。CodeIgniter创建新的自定义异常

我已经扩展了CI_Exceptions class：

class MY_Exceptions extends CI_Exceptions { 
    function My_Exceptions() { 
     parent::CI_Exceptions(); 
    } 

    public function file_upload_error($error_code = UPLOAD_ERR_OK) { 
     switch ($error_code) { 
      case UPLOAD_ERR_INI_SIZE: 
       $message = "The uploaded file exceeds the upload_max_filesize directive in php.ini"; 
       break; 
      case UPLOAD_ERR_FORM_SIZE: 
       $message = "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form"; 
       break; 
      case UPLOAD_ERR_PARTIAL: 
       $message = "The uploaded file was only partially uploaded"; 
       break; 
      case UPLOAD_ERR_NO_FILE: 
       $message = "No file was uploaded"; 
       break; 
      case UPLOAD_ERR_NO_TMP_DIR: 
       $message = "Missing a temporary folder"; 
       break; 
      case UPLOAD_ERR_CANT_WRITE: 
       $message = "Failed to write file to disk"; 
       break; 
      case UPLOAD_ERR_EXTENSION: 
       $message = "File upload stopped by extension"; 
       break; 

      default: 
       $message = "Unknown upload error"; 
       break; 
     } 

     log_message('error', $error_code); 
     return $message; 
    }  
}

但是当我打电话file_upload_error(1)它说：Call to undefined function file_upload_error()

我该如何解决这个问题？

来源

2013-04-22 alinflames

你的功能是在课堂外定义的吗？ – 2013-04-22 11:01:08

向我们展示您在何处以及如何调用此类方法。 – karmafunk 2013-04-22 11:06:18

我觉得你没有正确使用你的类库，但很难从你的问题中知道。从模型或控制器类，你可以使用：

$this->load->library('exceptions'); 
$message = $this->exceptions->file_upload_error($error_code);

当你告诉它加载例外库，它会自动查看是否有一个与MY_前缀您的应用程序/库/目录。如果它在那里，它会加载它。然后，您可以像访问其他库一样访问它。

希望有所帮助。

来源

2013-04-22 20:59:20 Jerry

CodeIgniter创建新的自定义异常

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