Alguien sabe como hacer un carousel con bootstrap 4 vertical[No resuelta]

<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  }
  global $salida;
$theValue = function_exists("mysqli_real_escape_string") ? mysqli_real_escape_string($salida, $theValue) : mysqli_escape_string($salida,$theValue);

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}
}
$query_Publicidad2 = sprintf("SELECT * FROM tblanuncios WHERE intActivo=1 AND intPosicion=2 ORDER BY intOrden ASC LIMIT 4");
$Publicidad2 = mysqli_query($salida,  $query_Publicidad2) or die(mysqli_error($salida));
$row_Publicidad2 = mysqli_fetch_assoc($Publicidad2);
$totalRows_Publicidad2 = mysqli_num_rows($Publicidad2);
?>
<?php if ($row_Publicidad2['strImagen']!=""){?>
<div id="myCarousel" class="carousel slide" data-ride="carousel">
  
  <!-- Wrapper for slides -->
  
  <div class="carousel-inner" role="listbox">
    <?php  $activo = 0;?>
    <?php do { ?>
    <?php  if ($activo == 0) {
    echo '<div class="carousel-item active">';
                        } else {
     echo '<div class="carousel-item">';
       }
	   ?>
        <div class="row">
    <div class="col-lg-6">
      <div class="card">
<a href="<?php echo $row_Publicidad2['strLink']; ?>"><img class="card-img-top" src="imagenes/anuncios/<?php echo $row_Publicidad2['strImagen'];?>" alt="<?php echo $row_Publicidad2['strTitulo']; ?>" title="<?php echo $row_Publicidad2['strTitulo']; ?>"> </a>
      </div>
    </div>

        </div>
  </div>
  <?php   $activo++;  ?>
  <?php } while ($row_Publicidad2 = mysqli_fetch_assoc($Publicidad2)); ?>
</div>
<!-- Indicators -->
<?php  $Rows = mysqli_num_rows($Publicidad2);
echo '<ol class="carousel-indicators hidden">';
for ($i=0; $i<$Rows; $i++) {
    if ($i == 0) {
        echo '<li data-target="#myCarousel" data-slide-to="0" class="active"></li>';
    } else {
        echo '<li data-target="#myCarousel" data-slide-to="' . $i . '"></li>';
    }
}
echo '</ol>';
?>
<!-- Fin Indicators -->
  <a class="carousel-control-prev" href="#myCarousel" role="button" data-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="sr-only">Anterior</span>
  </a>
  <a class="carousel-control-next" href="#myCarousel" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Siguiente</span>
  </a>
</div><?php }?>
<?php
mysqli_free_result($Publicidad2);
?>