[Codeigniter] Uppload file type (docx,doc, zip, png, jpg,...)

Thêm đuôi cho phép upload vào allowed_types:
$config['allowed_types'] = ALLOWED_TYPES;

Nếu đã add vào allowed file type mà vẫn không upload được thì làm như sau:

Try to add this mime type: application/zip to application/config/mimes.php for docx. It works for me.

Open system/libraries/Upload.php(line 205) and do this:
var_dump($this->file_type);
exit();

You will see file type of you .docx and need to add it to docx mimes list in config.