I am currently working on a project in which I need to have an autocomplete form call its information from a db file. I have seen many tutorials on jquery autocomplete forms, but I do not know how to call a db file to populate the list.

I am working in PHP. Currently the code represents a simple drop down box that is calling on the db file for population.

```
    <?php
    global $wpdb;
    $depts = $wpdb->get_results( "SELECT * FROM departments ORDER BY department_name ASC" );
    echo '<select>';

    foreach($depts as $row) {
        echo '<option name="select_dept" value="'.$row->department_id.'">'.$row->department_name.'</option>';
    }
    echo '</select>';
?>

```

Any help would be awesome!