post-thumbnails - Read For Learn

Get last post in category thumbnail

Try this: <?php $the_query = new WP_Query( ‘showposts=1&cat=55’ ); if($the_query->have_posts()) : while ($the_query -> have_posts()) : $the_query -> the_post();?> <a href=”https://wordpress.stackexchange.com/questions/144864/<?php the_permalink(); ?>”><?php the_post_thumbnail();?></a> <?php endwhile; endif; /* Restore original Post Data */ wp_reset_postdata();?> Replace cat=55 with the category ID you want and/or replace showposts=1 with the number of latest posts you want to show … Read more

Where to add the_post_thumbnail( )

Make sure it’s inside the loop. <?php if (have_posts()) : ?> <?php while ( have_posts() ) : the_post() ?> <?php the_post_thumbnail(); ?> <?php endwhile;?> <?php endif; ?>

Retrieve a post’s featured image with PHP outside of WordPress

The most common way to achieve those features is to implement some sort of interface, usually in JSON or XML. To do this, you either use a plugin (http://wordpress.org/plugins/json-rest-api/ <= Will probably part of core in WP 4.0) or do the AJAX function yourself. An example would be: add_action( ‘wp_ajax_get_thumbnail’, ‘ajax_get_thumbnail’ ); add_action( ‘wp_ajax_nopriv_get_thumbnail’, ‘ajax_get_thumbnail’ … Read more

the_post_thumbnail() doesn’t always return selected size

Those might be old images. Image uploaded to WordPress before adding this new image size code will not resize automatically. You will have to resize old images again. There is a great plugin for that. Use Regenerate Thumbnails plugin to auto generate thumbs for all images. If you ever add a new image size then … Read more

Comparison Operators not working for conditional author post thumbnails

You are using wrong Comparison Operators. Use else if($author_id == “2”) { instead of else if($author_id = “2”) { Edit: Try adding trailing slash after get_stylesheet_directory_uri function. its missing in your code. <img src=”https://wordpress.stackexchange.com/questions/166850/<?php echo get_stylesheet_directory_uri() ?>/images/default-thumb.jpg” alt=”” title=”” width=”” height=”” />

custom thumbnail image size not working

I Used Regenerate Thumbnails plugin to generate thumbnails

How can I assign bloginfo path or thumbnail path to a variable and call it in markup?

The bloginfo() function outputs immediately. since you’re storing to a $variable you’ll want to use get_bloginfo() instead. also, you’re missing a concatenation. $large_image_url = get_bloginfo(‘template_directory’) . ‘/library/images/default-header-image.jpg’;

WordPress generated thumbnails

I figured it out this was a theme option located in the functions.php file set_post_thumbnail_size( 825, 510, true ); This is how this customized size came out in the first place!

Unrestricted height thumbnails

According to add_image_size() you can do something like that with width but I imagine it works the same with height: $width (int) (optional) The post thumbnail width in pixels. Set to 9999 to resize based on $height Default: 0 Really I think you would want to set it to something ridiculously high which 9999 should … Read more

Programmatically set thumbnail via URL using DOM and XPATH – Where to add ELSEIF

Ok I got it! Here is the code I used: add_action(‘publish_post’, ‘custom_auto_featured_image_publish_post’,10,2); function custom_auto_featured_image_publish_post($post_id, $post) { // get category of post ID $cat_detail=get_the_category($post_id); $cat_name = array(); foreach($cat_detail as $cd){ $cat_name[] = $cd->cat_name; } $custom_fields = get_post_custom($post_id); if(isset($custom_fields[‘original_guid’]) && !empty($custom_fields[‘original_guid’])){ $htmlURL = $custom_fields[‘original_guid’][0]; // try to load the webpage $dom = new domDocument; $imageURL = ”; … Read more

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