Action hook 'admin_head_{$content_func}'

Description

Fires in the admin header for each specific form tab in the legacy (pre-3.5.0) media upload popup. The dynamic portion of the hook name, `$content_func`, refers to the form callback for the media upload type.

Occurrences

PHP Doc

/**
		 * Fires in the admin header for each specific form tab in the legacy
		 * (pre-3.5.0) media upload popup.
		 *
		 * The dynamic portion of the hook name, `$content_func`, refers to the form
		 * callback for the media upload type.
		 *
		 * @since 2.5.0
		 */