How to run linux terminal command via php in browser?

Question

linux

I have a PHP script that calls a Python script in the terminal:

<?php
$output = shell_exec("python3 drel_on.py");
echo "<pre>$output</pre>";
?>

If you call it in the terminal, it works, but if you run it in the browser, the command is not executed. How to solve this problem?

Answer 1

One option is to set up the webserver so that .php handles Puff and .py handles Python.
If this script really doesn't do anything else.