<form action="?id=<?=$b['user_id']?>" method="post"><label for="select1"></label><br />
<select name="select" id="select1" class="select">
<option value="gonder">Onayla</option>
<option value="sil">Sil</option></select>
<input type="submit" id="select2" class="submit" value="Gönder" />
</form>


Onayla diyince çalışmıyor hocam