<? include 'includes/sql.php'; $a=explode(',',$_POST['cat']); print_r($a); foreach($a as $k=>$v){ $d=mysql_query("insert into `cat` (`name`,`parent`) values ('$v','0') ");} if ($d==true) echo 'true'; $d=mysql_query("select `id`,`name`,`parent` from `cat` where `parent`='0'"); var_dump($d); while($l=mysql_fetch_assoc($d)){ ?> <ul> <li><?= $l['name'];?></li> <?$d2=mysql_query("select `id`,`name`,`parent` from `cat` where `parent`='{$l['id']}'"); while($l2=mysql_fetch_assoc($d2)){ ?> <ul><li><?= $l2['name'];?> <?$d3=mysql_query("select `id`,`name`,`parent` from `cat` where `parent`='{$l2['id']}'"); while($l3=mysql_fetch_assoc($d3)){ ?> <ul><li><?= $l3['name'];?></li></ul> <?}?> </li></ul> <?}?> </ul> <?}?> <form method="post"> <input type='text' name='cat'> <input type='submit' name='send'> </form>