$sql_extra.=sprintf(" AND `item`.`parent` IN (SELECT distinct(`parent`) from item where ( `author-link` regexp '%s' or `tag` regexp '%s' )) ",
$diasp_url=str_replace('/profile/','/u/',$myurl);
$sql_extra.=sprintf(" AND `item`.`parent` IN (SELECT distinct(`parent`) from item where ( `author-link` regexp '%s' or `tag` regexp '%s' or tag regexp '%s' )) ",