How to integrate Python with PHP?

What do you want to do with python what you cant do in PHP?
Codeigniter are made with PHP, so anything you can do in PHP you can do in Codeigniter.

The only way to execute something outside PHP are with these function.
https://www.php.net/manual/en/function.e...ellcmd.php
https://www.php.net/manual/en/function.shell-exec.php
https://www.php.net/manual/en/function.exec.php