将codeigniter代码上传到服务器后打开空白页面

I have uploaded Codeigniter code to server but blank page is displayed when opening the URL

I am using codeingniter 2.1.3.

I used MY_Controller.php on application/core/ folder as per specification

I got error in error_log file of codeigniter

"PHP Fatal error: Class 'My_Controller' not found in /home/nesterin/public_html/realstate/application/controllers/administrator/login.php on line 3"

can you tell what i am doing wrong ?

I'm not familiar with codeignighter. But I think if your class name is My_Controller and it's filename is MY_Controller.php autoloader probably won't find the file on a case sensitive file system.

When you upload you need to check these steps:

1. Change Config file. New versions of CI you can let it blank. CHECK base_url PLEASE! Read documentation
2. Change database.php and add new data for database. Read Documentation

If you use the MY_Controller, than you need to check if you have the file in core folder and if you extend it correct in Controller too.

Hope that this answer will help you. If you face any problem, comment please!