Ben üzerinde çalışıyorum bir web sitesinde. Htaccess RewriteRule kullanıyorum.

İşte benim. Htaccess bir örnek

RewriteEngine on
RewriteRule ^about.htm$ /index.php?load=about&output=html [NC]

I would like to know if there is a way in my index.php file to detect if the page have been called via a Rewrite or the user reached it directly. I'm trying to avoid having to write some security check that I am not even sure where to start.

If there is no way to make that "check" where should I start to secure the file ?

My guess would be to make sure only load and output are passed to the $_GET, make a strip_tags(), trim(), stripslashes() and remove quotes.

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