upload_mimes filter-hookWP 2.0.0

Filters list of allowed mime types and file extensions.

Usage

add_filter( 'upload_mimes', 'wp_kama_upload_mimes_filter', 10, 2 );

/**
 * Function for `upload_mimes` filter-hook.
 * 
 * @param array            $t    Mime types keyed by the file extension regex corresponding to those types.
 * @param int|WP_User|null $user User ID, User object or null if not provided (indicates current user).
 *
 * @return array
 */
function wp_kama_upload_mimes_filter( $t, $user ){

	// filter...
	return $t;
}
$t(array)
Mime types keyed by the file extension regex corresponding to those types.
$user(int|WP_User|null)
User ID, User object or null if not provided (indicates current user).

Changelog

Since 2.0.0 Introduced.

Where the hook is called

get_allowed_mime_types()
upload_mimes
wp-includes/functions.php 3548
return apply_filters( 'upload_mimes', $t, $user );

Where the hook is used in WordPress

wp-includes/ms-default-filters.php 103
add_filter( 'upload_mimes', 'check_upload_mimes' );