How can the .htaccess file affect the execution of PHP code on a web server?

The .htaccess file can affect the execution of PHP code on a web server by controlling various server configurations such as rewriting URLs, setting PHP directives, and restricting access to certain files or directories. To ensure that PHP code is executed correctly, it is important to check the .htaccess file for any rules or directives that may interfere with the PHP execution.

<IfModule mod_rewrite.c>
    RewriteEngine Off
</IfModule>