[PHP] PDO Array

if ($_SESSION['UserUID'] == true) {
    $arrayNomes = [];
    require 'conectar/conexao.php';
    $sql = $conn->query("SELECT CharName FROM PS_GameData.dbo.Chars WHERE UserUID = ".$_SESSION['UserUID']." ");
    $sql->execute();

    while ( $obj = $sql->fetch(PDO::FETCH_NUM)) {
        $arrayNomes[] = $obj[0];
    }

    foreach($arrayNomes as $nome){
        echo $nome;
    }
}