WordPress Version: 5.3
/**
* Returns the space used by the current site.
*
* @since 3.5.0
*
* @return int Used space in megabytes.
*/
function get_space_used()
{
/**
* Filters the amount of storage space used by the current site, in megabytes.
*
* @since 3.5.0
*
* @param int|false $space_used The amount of used space, in megabytes. Default false.
*/
$space_used = apply_filters('pre_get_space_used', false);
if (false === $space_used) {
$upload_dir = wp_upload_dir();
$space_used = get_dirsize($upload_dir['basedir']) / MB_IN_BYTES;
}
return $space_used;
}