Someone

<select name="kategoriid">
<option selected value="">Kategori Seçiniz</option>
<?php
	$sql= "select * from unikategori order by 'id' asc";
	$cek=mysql_query($sql);
	while ( $bas = mysql_fetch_assoc($cek)) {
	echo '
	<option value="'.$bas[id].'">'.$bas[kategoriadi].'</option>
	';
}
?>