How the htaccesss code works and how they used to redirect the link why index.php is used??
<IfModule mod_rewrite.c>
RewriteEngine On
#RewriteBase /XYZ/
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>