This question already has an answer here:
I have the root project-folder. Where each php files are in specific folder.
For each nav items, I have passed the php page through href="" tag.
When I click on the nav item it then takes me to the requested page as passed in href. But when from that page if i choose other nav items it says page not found.
e.g <a href="Categories/page.php">Page</a><a href="Extras/extra.php">Extra</a>
When I am on extra.php and choose another nav items from navigation it says object not found. The URI becomes unreachable i.e http://localhost/Project/Extras/extra.php/Categories/page.php"Object Not Found" It should be like http://localhost/Project/Categories/page.php.
</div>
Just use absolute links
<a href="/Project/Categories/page.php">Page</a>
<a href="/Project/Extras/extra.php">Extra</a>
You need to make your tags start from the project root by prefixing all the links with /
<a href="/Project/Categories/page.php">Page</a>