So i bougt one php script...

And for some reason it have all php file replaced with htm extension.Any idea why is that?Maybe because of seo reasons?

 

maybe you can check if you have url rewrite in htaccess

 

Yes, its for seo reasons. Search engines index dynamic pages slower than static pages.

If the php code is in the html files you will need to add this to the .htaccess file:

AddType application/x-httpd-php .php .htm .html
AddHandler application/x-httpd-php .html .php

Code (markup):