1) My first query is how can i get the values from an array to be passed into a mysql query for the following part.

I have a dropdown select box with to options that have values assigned to them code below:

<tr>
    <th>
        <label for="user_level">
         User Level: *  <?php echo isset($valid_user_level) ? $valid_user_level : NULL; ?>
        </label>
    </th>
</tr>
<td>
    <select name="user_level" id="user_level" class="sel">
        <option value="">Select one…</option>
        <option value="1">User</option>
        <option value="5">Admin</option>
    </select>
</td>

I want to create an array that will pass the options and insert the value of 1 or 5 into the database.

$sel = array();

How can i pass the data to the array that will pass the value of the field seleceted i.e if admin was selected value passed into the database would be 5.

I need the dropdown box to show the user the names such as user or admin etc.

2) What code is required for me to show the last time a user logged into their account, for example if i logg in on 01/01/2011 at 10.30 and again at the cuurent date and time but i want the user to be able to see the last time they logged in.

3) What query is required to show the current users online are, example i have 5 users currently online and i want to display the current users online what php code is required for this?

Thank you

Wishing you a happy new year.