Single Post Under Multiple Categories?

try to use an ‘if/elseif’ structure, and set a priority by the sequence of the if statements.

example:

<?php if(   is_category( 'photos' ) || is_single() && in_category('photos')       ){ ?>
<div id="bgphotos"></div>
<?php } elseif(   is_category( 'videos' ) ||  is_single() && in_category('videos')            ){ ?>
<div id="bgvideos"></div>
<?php } ?>

here any post in both ‘photos’ and ‘ videos’ would get shown in a ‘#bgphotos’ div…

@alchymyth Thanks for the help man. It’s a quick little fix. ?? But that’s not exactly what I’m looking for. I’m trying to do this…

Say you’re under the photo category page, you see a post that says “test post” and it is under the photos and videos categories. You click it, it shows the #bgphotos div because you were in the photos category when you clicked on it. Now say your under the videos category and you see the same post. You click it and it now shows the #bgvideos div, since you were in the videos category when you clicked on it. I hope that makes sense. ??

Is this even possible, or does it require hardcore coding?

Do you have a URL for the site? It seems like alchymyth’s solution should work in that it will default to bgphotos if it is in the photos category, and use bgvideos only if it is in just the videos category.

Are you talking about category templates?
https://codex.www.ads-software.com/Category_Templates

you would need to know where the click came from;

you might be able to extract the category information from this:

https://codex.www.ads-software.com/Function_Reference/wp_get_referer

@jhoffm34

My website is enberwebsite.com/testtest And I tried his code out and it did exactly what he said it does. When there is a post in both the photos and videos category, it will auto show the photos div, for both categories. If you know a solution for what I said in the 3rd post, please let me know ??

Oh yeah, the first two posts on my site are under both the videos and photos categories. The black box on the top left should appear when your on the photos category page and also on a single post in the photos category page. the white box should show when on the photos category page and also on a single post under the photos category page. Instead, the black box will show when you click on the link from either the photos category or the video category, just like alchymyth said.

Again, if you know a fix for what I said in post 3 that would be greeeeat! ??

thanks @alchymyth I got it working!!! ??