Set class if a meta value is set within post archive

I'm attempting to add a class to posts when the meta key 'checkbox' is clicked. Here's what I have:

?PHP $checkbox = get_post_meta($post-ID, 'checkbox', true);
    if (!empty($checkbox)){ $has_video = 'icon-has_video'; }
  else {$has_video = '';}
?
a class='?php echo $has_video; ?' href='?php the_permalink(); ?'

... but so far it's not working. Any suggestions?

Topic meta-value post-meta metabox post-class custom-field Wordpress

Category Web

1
answered at

i suggest you check the the value of $checkbox by either checking checkbox under meta_key column in wp_postmeta or *your prefix_postmeta table in your database or simply do var_dump($checkbox); for testing if its 0 or null or an empty string or so then your if condition will not return true and $has_video will not be assigned to 'icon-has_video'.

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