$values = array(1, 2, 3, 4, 5);

$placeholders = db_placeholders($values);

$result = db_query("SELECT t.s FROM {table} t WHERE t.field IN ($placeholders)", $values); 

$items = array();
while ($row = db_fetch_object($result)) {
  $items[] = l($row->title, "node/{$row->s}");
}

Drupal db_query example

mysql, php, drupal

PHP