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1. doodlebee
   Member
   Posted 4 years ago #

   I'm trying to get the tags from within the Loop and use them as variables. It's all working kind of okay - I just keep getting this warning:

   "Warning: Invalid argument supplied for foreach()..."

   I'm using this, from the codex, and from what I can see, I'm implementing it as I'm supposed to, but that warning will *not* go away.

   The piece of code that I've written:
   

   foreach((get_the_tags()) as $tag) {
           $posttag = $tag->slug;
           }

   This is *definitely* within the Loop. The posts display as they should - so it's calling in the variables correctly - but I still get that stinkin' warning on the page. I'm thinking I need another set of eyes - would anyone know why it's doing this?

2. MichaelH
   Volunteer
   Posted 4 years ago #

   I'd say the problem is no tags for whatever is the 'current post', thus the array is empty and the cause of your error.

   Didn't test this but try something like:
   

   <?php
   $mytags = get_the_tags();
   if ($mytags) {
   foreach($mytags as $tag) {
   $posttag = $tag->slug;
   }
   }
   ?>

3. doodlebee
   Member
   Posted 4 years ago #

   That's odd - because there *are* tags for the posts in question. (Further proof is that they're actually showing up, too - they just have the warning above them - and I'm working on a Tag archive page.)

   I see what you're doing there though. And hey - it worked!

   I wonder if it's because I have *other* posts associated with the stuff I'm bringing in, and *those* are the ones that don't have any tags. That could certainly be it - and I never even thought of that coming into the picture.

   Thanks so much Michael!

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