I need to show some results in table, but the query data shows up to the table. Here is the code:

```
    $db = new mysqli('localhost','root','123','news');
if($db->connect_errno > 0){
    die('Unable to connect to database [' . $db->connect_error . ']');
}
$sql = <<<SQL
            SELECT Id FROM news
SQL;
    $result=mysqli_query($db,$sql);
    print "<table><tr><td>№</td></tr>";
    while($row = mysqli_fetch_row($result)){
        print '<tr><td>'+$row[0]+'</td></tr>';
    }
    print "</table>";

```

The result is like this:

```
1234
№

```

It should look like this:

```
№
1
2
3
4

```