I have been working on a flat PHP code - No MVC.
It has 1 index file with a form containing a radio and a file upload option + calls fuctions from 2 other .php files containing functions, and after submitting - it upload the file, loads PHPExcel library, manipulates the Excel file and outputs a download link to the edited Excel file.
Is there a SAFE way to run this on CodeIgniter without any problems?
(with the functions and not objects - or maybe a comfortable way to change my code without too many syntax problems, with the encoded security the CodeIgniter uses, ect')