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1. cezarneaga
   Member
   Posted 4 years ago #

   hi
   i have this code in the loop that reads the tags in a post and if it finds one in particular "Peace initiatives" it then changes the div class and the border goes grey.

   <?php
                  $post_class="post";
   			   $tags=get_the_tags($id);
                  foreach ($tags as $key => $post_type)
                  {
                     $tag_str=$post_type->name;
                     if (stripos($tag_str,'Peace initiatives')) {
                             $tag_str="Peace initiatives";
                     }
                     switch ($tag_str)
                     {
                          case 'Peace initiatives':
                              $post_class="post-peace";
                              break;
                     }
                  }
                ?>

   after upgrading i get a crazy error sometimes, not everytime that says:

   Warning: Invalid argument supplied for foreach() in /.../wp-content/themes/pact-by-cezar/index.php on line 31

   the line is the foreach line i use above. have the $tags arguments changed in wp 2.5?
   can anyone help me out? the blog is here: http://www.pact.lk
   thanks

   C

2. Otto
   Tech Ninja
   Posted 4 years ago #

   Do you have any posts that don't have any tags?

   foreach ($tags as $key => $post_type)

   That code will be invalid if $tags is not an array, which it won't be if there are no tags on a post.

3. cezarneaga
   Member
   Posted 4 years ago #

   hi thanks for the reply Otto.
   indeed on the pages i dont have. maybe also a few posts. so in search results if a result is from a page it brings this warning.

   any idea how i could correct this?
   thank you for the help.

   C

4. Otto
   Tech Ninja
   Posted 4 years ago #

   Try this.

   ...
   if (!empty($tags)) foreach ($tags as $key => $post_type)
   ...

5. cezarneaga
   Member
   Posted 4 years ago #

   it so worked. :)

   thank you so much. if you're ever planning to scuba dive in sri lanka give me a ping.

   Cezar

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