controllare con query se cè campo e cancellarlo

[marco80]

$select = "SELECT campo_id FROM tabella WHERE campo_id ='".$tuo_id."'";
$query = mysql_query($select)or die(mysql_error());
$result= mysql_fetch_array($query);
$row = mysql_affected_rows();
if($row > 0) {
$delete = "DELETE FORM tabella WHERE campo_id = '".$result['campo_id']."'";
$del = mysql_query($delete)or die(mysql_error());
}