how to check if a url is typed or coming from a click in php?
<p>is there a way for php to tell if an address is directly typed by user or coming from a click or any other method that in the end will result a php-generated page?</p>

<p>this question is purely out of curiosity so the urgency is very, very low. but thank you if you want to spare sometime to answer. :D</p>
