php - Echo result of MySQL SELECT query

I have a MySQL SELECT Query that I would like to echo in
PHP. How would I do this? I have tried everything that is listed on the PHP.net help
center, but I either do not understand it or it is not what I am looking
for.

$sql = "SELECT
            gamePlayerCount FROM mpTicTacToe_gameData WHERE gameId = " . $gameId;
$result
            =
            mysqli_query($mySqlConnection,$sql);
var_dump($result);

I
just tried using var_dump, but it returns bool(false) instead
of the 2 that it should be returning