apply_filters( 'upload_mimes', array $t, int|WP_User|null $user )

Filters the list of allowed mime types and file extensions.

Parameters

$t: Mime types keyed by the file extension regex corresponding to those types.
$user: User ID, User object or null if not provided (indicates current user).

Used By
Used By	Description
wp-includes/functions.php: get_allowed_mime_types()	Retrieves the list of allowed mime types and file extensions.

Changelog
Version	Description
2.0.0	Introduced.