— Open page register.php...Simply nothing else
People place <a href="phpfile.php"> all the time. It is normal: view-source:https://www.php.net/manual/en/tutorial.php
— Is the path correct?
— Test with a php file containing only some HTML and then try again.
— I want to trigger a php function on div click ...what is the way
— Otherwise I could imagine your php server is broken. what do you use? apache? any htaccess placed?
— Depends on what kind of function you want to trigger.. for location forwarding, <a href=""> is the right way to go
Message permanent page
— Otherwise: HTTP API, with fetch.
— I want to operate with MySQL database when click on div
— Then fetch is right
— I don't know fetch