Why is 500 returned when redirecting requests to index.php?

Question

PHP

written in .htaccess

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php

If I remove it, then index.php opens quietly, but a 500 error is issued with it. What is the problem?

Answer 1

Logs!!!! LOOK AT THE LOGS!!!
The first thing to do at 500 is to look at what causes the error. For the virgins of the environment, it is generally mandatory to prescribe

ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);

in the index as the first lines.

Answer 2

mod_rewrite not installed