Title: Fallback Thumbnail Image? Last modified: August 30, 2016 --- # Fallback Thumbnail Image? * Resolved [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/) * FANTASTIC plugin! Very well don’t and lightweight * [https://wordpress.org/plugins/related-posts-by-taxonomy/](https://wordpress.org/plugins/related-posts-by-taxonomy/) Viewing 13 replies - 1 through 13 (of 13 total) * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204632) * Hi undergroundnetwork * Normally only posts with a post thumbnail (featured image) are found as related posts. Did you use filters to display posts without a post thumbnail? * Would you like the fallback image be one you’ve uploaded in the media library or one you’ve uploaded to a directory in your (child) theme? * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204640) * Whoops.. didn’t realize I had posted the message! I wasn’t done writing it! Sorry about that! * I’ve used some of WordPress’s code to implement where it grabs the first attached image and makes it a fallback: * ``` /*************************************************** ::attached image ::http://codex.wordpress.org/Function_Reference/get_children#Examples :: Put - if ( ! has_post_thumbnail() { echo_first_image($post->ID); } in the template. ***************************************************/ function echo_first_image( $postID ) { $args = array( 'numberposts' => 1, 'order' => 'ASC', 'post_mime_type' => 'image', 'post_parent' => $postID, 'post_status' => null, 'post_type' => 'attachment', ); $attachments = get_children( $args ); if ( $attachments ) { foreach ( $attachments as $attachment ) { $image_attributes = wp_get_attachment_image_src( $attachment->ID, 'thumbnail' ) ? wp_get_attachment_image_src( $attachment->ID, 'thumbnail' ) : wp_get_attachment_image_src( $attachment->ID, 'full' ); echo ''; } } } ``` * I was just seeing if there was a way I could implement it into your code. I’m also in the process of adding in a default fallback image if there is not even an attached image. * That goes something like: * ``` if ( ! $attachments ) { echo ''; } ``` * I was going to try to implement the code and put it here for you, but I’m not that good of a coder. * Thanks! * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204671) * First of, if you use the format ‘thumbnails’ there should be no related posts found without a thumbnail. * 1. Do you want to use the first attached image instead of the post thumbnail ( for posts with a post thumbnail)? 2. Or do you want to search for related posts regardless if they have a post thumbnail, show the fallback if the post doesn’t have a (first) image attached? * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204683) * I’d like the plugin to grab ALL related posts, by using your code: * ``` $args = array( 'post_thumbnail' => 0, ); ``` * 1 – If there IS a featured image, it will show it like it already does. * 2 – If there is no featured image, then it should grab the first attached image if there is one. Which my code above does. * 3 – If there is no attached image, then it will grab a default (fallback) image that I have set. * I’ll try to write the code now and post it here if you want to add it to your plugin. * Thanks! * Charles * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204687) * Aha, that makes sense 🙂 * Are you displaying the related posts yourself, with the km_rpbt_related_posts_by_taxonomy() function? Or are you using the widget or/and shortcode? * I guess you use the function. I appreciate if you post the code you have now. My time today is limited. I have some time tomorrow to help you with this. * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204690) * I’m using the echo shortcode approach.. * `` * I’m using the code above for my lists of posts, where i have: * ``` if ( has_post_thumbnail() { the_post_thumbnail() } else { echo_first_image($post->ID); } ``` * I don’t have the fallback image as part of the code yet. * Charles * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204729) * OK, I’m using the functions.. and it won’t show related posts even if I tell it to show posts without thumbnails: * ``` 3, 'post_thumbnail' => 0, ); $taxonomies = array( 'category', 'post_tag' ); $post_id = $post->ID; // post id available inside the loop. $related_posts = km_rpbt_related_posts_by_taxonomy( $post_id , $taxonomies, $args ); // check if related post were found if ( $related_posts ) { $args = array( 'columns' => 3, 'size' => 'thumbnail', // Default "thumbnail", "medium", "large", "full" ); // display the related post thumbnail gallery echo km_rpbt_related_posts_by_taxonomy_gallery( $args, $related_posts ); } } ?> ``` * It just shows 2 posts and the 3rd is blank. Is there something I am doing wrong? * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204740) * That’s because the km_rpbt_related_posts_by_taxonomy_gallery() function function doesn’t show an image for related posts that have no post thumbnail. The good thing is you can add a filter to the gallery images. * Try it with this in your theme’s functions.php * ``` // Filter the post thumbnail image link add_filter( 'related_posts_by_taxonomy_post_thumbnail_link', 'rpbt_related_post_image', 10, 4 ); function rpbt_related_post_image( $image, $attr, $related, $args ) { if ( !empty( $image ) ) { // Post thumbnail found. return $image; } $image_args = array( 'numberposts' => 1, 'order' => 'ASC', 'post_mime_type' => 'image', 'post_parent' => $related->ID, 'post_status' => null, 'post_type' => 'attachment', ); $attachments = get_children( $image_args ); if ( !empty( $attachments ) ) { // Attached images found $attachments = array_values( $attachments ); $id = (int) $attachments[0]->ID; // first attachment image $image = wp_get_attachment_image( $id , $args['size'], false, $attr['describedby'] ); } else { // fallback image // Change 1790 to the id you want as fallback image $image = wp_get_attachment_image( 1790, $args['size'], false, $attr['describedby'] ); } $image = $image ? "{$image}" : ''; return $image; } ``` * btw: consider creating a [child theme](http://codex.wordpress.org/Child_Themes) instead of editing your theme directly – if you upgrade the theme all your modifications will be lost. Or [create a plugin](https://wordpress.org/plugins/pluginception/) with the code above. * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204753) * Hi undergroundnetwork * With some extra code you can use the fallback images in the widget and shortcode as well. [Read about it here](https://keesiemeijer.wordpress.com/related-posts-by-taxonomy/recipes/#image-fallback) * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204754) * Fantastic! That is so great that you did that! Will try it out when I get back to my conputer. * You are by far one of the most helpful plugin developers there is which is why you fully deserve 5 stars and have been getting them. * And your plugin is so lightweight, and just works so well. * Thank you for everything! * Charles * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204758) * You’re welcome 🙂 I hope it solves your issue. Let me know here. * Thanks for the great review 🙂 * Thread Starter [undergroundnetwork](https://wordpress.org/support/users/undergroundnetwork/) * (@undergroundnetwork) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204763) * Just put the code for the shortcode version and it works perfectly! * Oh.. I just noticed a couple typos on your website, the beginning php tags on this page do not have the question marks, I think you need them unless I am mistaken. * ``` and ``` * Just wanted to point them out just in case. * Thanks! * Plugin Author [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204775) * Great to hear. * And thanks for the typos. I’ve updated the examples. Viewing 13 replies - 1 through 13 (of 13 total) The topic ‘Fallback Thumbnail Image?’ is closed to new replies. * ![](https://ps.w.org/related-posts-by-taxonomy/assets/icon.svg?rev=1115231) * [Related Posts by Taxonomy](https://wordpress.org/plugins/related-posts-by-taxonomy/) * [Frequently Asked Questions](https://wordpress.org/plugins/related-posts-by-taxonomy/#faq) * [Support Threads](https://wordpress.org/support/plugin/related-posts-by-taxonomy/) * [Active Topics](https://wordpress.org/support/plugin/related-posts-by-taxonomy/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/related-posts-by-taxonomy/unresolved/) * [Reviews](https://wordpress.org/support/plugin/related-posts-by-taxonomy/reviews/) * 13 replies * 2 participants * Last reply from: [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * Last activity: [11 years ago](https://wordpress.org/support/topic/fallback-thumbnail-image/#post-6204775) * Status: resolved