I am currently using the following code to get the URL of the featured image of a wordpress post:
URL="<?php if (function_exists('wp_get_attachment_thumb_url')) {echo wp_get_attachment_thumb_url(get_post_thumbnail_id($post->ID), 'big-size'); }?>"
But the code only returns the smaller (150x150px) thumbnail. This is what I get:
http://sitename.com/wp-content/uploads/imagename-150x150.png
My question is, how do I get it to return the URL for the original image (full sized image) which would be:
http://sitename.com/wp-content/uploads/imagename.png
Many thanks for your time and help.
There are four valid sizes built in to the WordPress core.
the_post_thumbnail('thumbnail'); // Thumbnail (default 150px x 150px max)
the_post_thumbnail('medium'); // Medium resolution (default 300px x 300px max)
the_post_thumbnail('medium_large'); // Medium Large resolution (default 768px x 0(means automatic height by ratio) max) since WP version 4.4
the_post_thumbnail('large'); // Large resolution (default 640px x 640px max)
the_post_thumbnail('full'); // Original image resolution (unmodified)
The last is one you’re looking for.
The following returns the URL.
<?php
$src = wp_get_attachment_image_src( $attachment_id, $size, $icon );
echo $src[0];
The whole code can look like that:
<?php
$src = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full', false );
echo $src[0]; // the url of featured image
More information can be found here.