Thumbnail is essentially attachment so you can approach from that side – lookup ID with get_post_thumbnail_id() and fetch data with wp_get_attachment_image_src(), like this: if (has_post_thumbnail()) { $thumb = wp_get_attachment_image_src(get_post_thumbnail_id(), ‘thumbnail_name’); echo $thumb[0]; // thumbnail url } (source)
you can do that by running the function set_post_thumbnail( $my_post_id, $thumbnail_id ); remember, you have to process and insert the image into the library first: $uploaddir = wp_upload_dir(); $file = $_FILES[ … whatever you have in your POST data … ]; $uploadfile = $uploaddir[‘path’] . “https://wordpress.stackexchange.com/” . basename( $file ); move_uploaded_file( $file , $uploadfile ); … Read more
I solved it!!! The filter in fix #3 (above) wasn’t working because of the third condition of this if statement that triggers the dimension extraction and attachment: if (is_array($image) && preg_match(‘/\.svg$/i’, $image[0]) && $image[1] == 1) $image[1] in the third condition is the reported width of the SVG file as WP sees it before it … Read more
You can do that because you can add all the attributes you need: the_post_thumbnail( ‘large’, array( ‘title’ => get_the_title() ) ); Please read on in the Function Reference of the_post_thumbnail.
Simpler way to figure out the post type of the item (which you are editing) and uploading media to: $type = get_post_type($_REQUEST[‘post_id’]); As has been noted, the media upload iframe that is shown in the lightbox overlay when you try to upload something doesn’t indicate the parent post that new upload will be attached to. … Read more
Did you try anything? Its always helpful to share what you have tried. $url = wp_get_attachment_url( get_post_thumbnail_id($post_id) ); Or if you want to get the image by image size. $src = wp_get_attachment_image_src( get_post_thumbnail_id($post_id), ‘thumbnail_size’ ); $url = $src[0]; http://codex.wordpress.org/Function_Reference/get_post_thumbnail_id http://codex.wordpress.org/Function_Reference/wp_get_attachment_url http://codex.wordpress.org/Function_Reference/wp_get_attachment_image_src
I think this code will help you: $src = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), ‘full’, false, ” ); echo ‘<img src=”‘.$src[0].'”>’;
Research The question Filter For Featured Image lead to this answer: How to hook update_post_meta and delete_post_meta?. Coupled with the a fine global variable ($_wp_additional_image_sizes) revealed here: How to get a list of all the possible thumbnail sizes set within a theme, bring us to the code that catches the “Use as featured image” action … Read more
Gee, I keep solving my own problems all the time. Here’s how I solved it in the end. I discovered that add_image_size does not ignore the identical dimensions of the image size, but instead points the file name towards the same file in the uploads dir. Once I knew that, I could just save the … Read more
You may want to look at the plugin Regenerate Thumbnails by Viper007Bond. Basically, this is how to do it: function regenerateThumbnails() { $images = $wpdb->get_results( “SELECT ID FROM $wpdb->posts WHERE post_type=”attachment” AND post_mime_type LIKE ‘image/%'” ); foreach ( $images as $image ) { $id = $image->ID; $fullsizepath = get_attached_file( $id ); if ( false === … Read more