Only Display Thumbnail if Larger Than

2 comments

1. You may be able to make this work with a filter on post_thumbnail_html.

   function filter_thumb_html($html, $post_id, $post_thumbnail_id, $size, $attr ) {
     $dimensions = wp_get_attachment_image_src($post_thumbnail_id, $size);
     if ($dimensions[1] > 500 || $dimensions[2] > 500) {
       return '';
     }
   }
   add_filter('post_thumbnail_html','filter_thumb_html',1,5);
   

   I am not sure what you mean by “if it is larger/smaller…”. I don’t know if need both conditions at once, or one or the other, or if you need to change the restrictions dynamically. The code above should give you a working model though.

   Reference

   http://core.trac.wordpress.org/browser/tags/3.5.1/wp-includes/post-thumbnail-template.php#L85

2. This should work

   $width = 200;
   $height = 200;
   
   $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ) );
   
   if($image[1] >= $width && $image[2] >= $height ){
       the_post_thumbnail($size, $attr);
   }
   

   Define width and height, and the size and attr that you want.

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