WordPress Version: 6.3
/**
* Toggles `$_wp_using_ext_object_cache` on and off without directly
* touching global.
*
* @since 3.7.0
*
* @global bool $_wp_using_ext_object_cache
*
* @param bool $using Whether external object cache is being used.
* @return bool The current 'using' setting.
*/
function wp_using_ext_object_cache($using = null)
{
global $_wp_using_ext_object_cache;
$current_using = $_wp_using_ext_object_cache;
if (null !== $using) {
$_wp_using_ext_object_cache = $using;
}
return $current_using;
}