<?php require_once('connect.php')?>
<div>
<select>
<?php
$sql = "SELECT * FROM department";
$result = mysqli_query($sql) or die('Запрос не удался: ' . mysql_error());
$row_cnt = mysqli_num_rows($result);
echo $row_cnt;
while ($row = mysqli_fetch_array($result, MYSQL_ASSOC)) {
echo '<option value="' . $row['id'] . '">' . $row['department'] . '</option>';
}
?>
</select>
</div>