admin_post_thumbnail_html

Filters the admin post thumbnail HTML markup to return.

Description

apply_filters( 'admin_post_thumbnail_html', (string) $content, (int) $post_id, (int) $thumbnail_id ); 

Parameters (3)

0. $content (string)
Admin post thumbnail HTML markup.
1. $post_id (int)
The post id.
2. $thumbnail_id (int)
The thumbnail id.

Usage

To run the hook, copy the example below.
  1. $content = apply_filters( 'admin_post_thumbnail_html', $content, $post_id, $thumbnail_id ); 
  2.  
  3. if ( !empty( $content ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the admin_post_thumbnail_html callback 
  2. function filter_admin_post_thumbnail_html( $content, $post_id, $thumbnail_id ) { 
  3. // make filter magic happen here... 
  4. return $content
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( 'admin_post_thumbnail_html', 'filter_admin_post_thumbnail_html', 10, 3 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( 'admin_post_thumbnail_html', 'filter_admin_post_thumbnail_html', 10, 3 ); 

Defined (1)

The filter is defined in the following location(s).

/wp-admin/includes/post.php  
  1. return apply_filters( 'admin_post_thumbnail_html', $content, $post->ID, $thumbnail_id );