do_action( "admin_head_{$content_func}" )
Fires in the admin header for each specific form tab in the legacy (pre-3.5.0) media upload popup.
Description
The dynamic portion of the hook, $content_func, refers to the form callback for the media upload type. Possible values include ‘media_upload_type_form’, ‘media_upload_type_url_form’, and ‘media_upload_library_form’.
Source
Changelog
| Version | Description |
|---|---|
| WP-2.5.0 | Introduced. |