drop down selct list with php and mysql

$query = "SELECT user FROM login ";
$result = mysql_query($query, $mysql_link);
if(mysql_num_rows($result)) {
// we have at least one user, so show all users as options in select form
while($row = mysql_fetch_row($result))
{
print("$row[0]");
}
} else {
print("No users created yet");
}