Althought WordPress allow you to do lots of things by default, it didn’t allow you to display tags based on a selected category. Here is an useful code to be able to do so.
Just paste this code wherever you need to display the list of tags that are specific to a particular category. Don't forget to replace the category name on line 2.
<?php
query_posts('category_name=work');
if (have_posts()) : while (have_posts()) : the_post();
$posttags = get_the_tags();
if ($posttags) {
foreach($posttags as $tag) {
$all_tags_arr[] = $tag -> name; //USING JUST $tag MAKING $all_tags_arr A MULTI-DIMENSIONAL ARRAY, WHICH DOES WORK WITH array_unique
}
}
endwhile; endif;
$tags_arr = array_unique($all_tags_arr); //REMOVES DUPLICATES
echo '<pre>'.print_r($tags_arr, true).'</pre>'; //OUTPUT FINAL TAGS FROM CATEGORY
?>
Thanks to WordPress Forums for the tip!
† RIP Michael Jackson †
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6 Responses
Hi,
I tried to add this code to a php widget but it doesn’t work. Instead of the tags the code is shown.
I tried several php widget but it just wouldn’t work…
I’m runing WP 3.2.1
Cheers
Thomas
I’d also be interested in a solution that allows the tags to be displayed as links, on the page, as opposed to the current display in the tags. Thanks!
I also am only getting an output of code as well
Hi Thanks but i need something different like categories from specific tags
Please help.
Thanks
Nice recipe!
And here’s the functions.php version:
function get_category_tags($category){
query_posts(‘category_name=’.$category);
if (have_posts()) : while (have_posts()) : the_post();
$posttags = get_the_tags();
if ($posttags) {
foreach($posttags as $tag) {
$all_tags_arr[] = $tag -> name; //USING JUST $tag MAKING $all_tags_arr A MULTI-DIMENSIONAL ARRAY, WHICH DOES WORK WITH array_unique
}
}
endwhile; endif;
$tags_arr = array_unique($all_tags_arr); //REMOVES DUPLICATES
return $tags_arr; //OUTPUT FINAL TAGS FROM CATEGORY
}
not working at all.
my error:
Warning: array_unique() expects parameter 1 to be array, null given in C:\wamp\www\wordpress\wp-content\themes\airspree\sidebar.php on line 58
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