is it possible to comment/ delete a line in an html page using php

Dynamically actually

[nil111]

I want to get rid of an item(login icon) in the menu when the user hv logged in. is tehre anyway I can do this?

[mrscruff]

use something like:

echo (is_user_logged_in ? 'html for logged in user' : 'html for login icon');
or
if (!is_user_logged_in) echo 'html for login icon';