Permalinks Class Object Created

We must create the Object of Permalinks Class in the Header file.
Note: We must include it before including "output_handling_include.php"
file because we are using this object in "output_handling_include.php".
Calling Permalink Output Handler Function for new Output

Here we are passing the complete $output of website to the Permalinks
class function $permalink->getOutput($output), which returns the output
with links replaced with their corresponding Permalinks aka SEO URL
links.
Permalink Output Handler Added

This Handler is used to insert a specific Handler into the Permalinks
Handlers List. This handler will be called, wherever you want to show
the Permalinks.

Examples:
add_permalink_handler("news");
add_permalink_handler("articles");
add_permalink_handler("threads");
.htaccess File for URL Rewriting in Apache Server

This .htaccess file contains the URL Rewriting rules for Apache web
server.
Definition:
If any request is made to your server, which is not a file and not a
directory, that will be a Permalink request, it will be rewritten to
"rewrite.php" file, and then "rewrite.php" will handle the request.