WordPress at a glance
function is not described

_media_button() WP 1.0

Deprecated in 3.5.0. It is no longer supported and can be removed in future releases. It is recommended to replace this function with the same one.

This was once used to display a media button.

Now it is deprecated and stubbed.

No Hooks.

Return

Null. Nothing.

Usage

_media_button( $title, $icon, $type, $id );

Changelog

Since DEL 3.5.0 Introduced.

Code of media button: wp-admin/includes/deprecated.php WP 5.2.2

<?php
function _media_button($title, $icon, $type, $id) {
	_deprecated_function( __FUNCTION__, '3.5.0' );
}