už to mám 
function post_cnt($html){
$galerySQL=mysql_query("SELECT * FROM galery");
while($galeryRES=mysql_fetch_array($galerySQL)):
$galeryHTML=vypis_galerie($galeryRES['id']);
$result = str_replace($galeryHTML, "[ galery="+$galeryRES['id']+" ]", $html);
endwhile;
return $result;
}