Question

I just wanted to know how to stop user from viewing folders without index pages using PHP or mod rewrite?

All of these answers are good but I will rate the one with the most votes.

Answer 1

Configure your web server to not automatically serve directory indexes.

Using Apache, this is done with the -Indexes option:

<Directory /web/docs/spec>
Options -Indexes
</Directory>

You can also put this Options -Indexes directive in an .htaccess file in the specific directory.