media_upload_gallery

The WordPress Core media upload gallery hook.

Description

add_filter( 'media_upload_gallery', (string) $media_upload_gallery ); 

Parameters (1)

0. $media_upload_gallery (string) => 'media_upload_gallery'
The media upload gallery.

Usage

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

Defined (1)

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

/wp-admin/includes/admin-filters.php  
  1. add_filter( 'media_upload_gallery', 'media_upload_gallery' );