We have a php 5.3/Apache 2.2 based cartoon website that always shows the most current cartoon on the homepage (index.php).
Now, a lot of people want to link directly to that cartoon (by copying the URL), so we added a little permanent link below the image (changing with the image id, like cartoon_1234.htm, cartoon_1235.htm and so on).
However, quite a few still link to index.php without realizing that that will show a different cartoon every day.
We considered using a simple header redirect - header('location: cartoon_xxxx.htm') - in our php code) that redirects whenever index.php is called, thus showing the desired URL in the browser.
But we are afraid the for instance the Google algorithm will not like the constantly changing temporary redirect (or will it?). And we don't want to risk our good ranking by showing different content to people and to SE-bots.
Question: is there any recommended practice to implement this kind of homepage with permalinked URL?