Error returning AJAX data

Question

My code is working up to the point where the ajax has to pick up the answer to print on the screen, the Insert is being done normally in the comic, if I change the return $("#requests"). html(data); to $("#requests"). html(data); works by returning serialize, something is escaping me?

    <script type="text/javascript">
jQuery(document).ready(function(){
    jQuery('#pedidos').submit(function(){
        var dados = jQuery( this ).serialize();

        jQuery.ajax({
            type: "POST",
            url: "pedidos.php",
            data: dados,
            success: function( data )
            {
                $("#pedidos").html(data); 
            }
        });

        return false;
    });
   });
  </script>

below the php page

   $nome = trim($_POST['nome']);
  $recado = trim($_POST['recado']);
  $error = FALSE;

  if (!$error) {
 $sql = "INSERT INTO `pedidos` (`nome`, `recado`) VALUES "
        . "( :nome, :recado)";

try {
  $stmt = $DB->prepare($sql);

  // bind the values
  $stmt->bindValue(":nome", $nome);
  $stmt->bindValue(":recado", $recado);


  // execute Query
  $stmt->execute();
  $result = $stmt->rowCount();
  if ($result > 0) {
    $_SESSION["errorType"] = "success";
    $_SESSION["errorMsg"] = "Sua mensagem foi enviada com Sucesso.";
  } else {
    $_SESSION["errorType"] = "danger";
    $_SESSION["errorMsg"] = "Falha ao enviar.";
  }
} catch (Exception $ex) {

  $_SESSION["errorType"] = "danger";
  $_SESSION["errorMsg"] = $ex->getMessage();
}
}

Answer 1

From what I see you do not return the data at any time. Gives a tested in this code:

$data = array();

try {
   ...

   if ($result > 0) {
       $data["errorType"] = "success";
       $data["errorMsg"] = "Sua mensagem foi enviada com Sucesso.";
   } else {
       $data["errorType"] = "danger";
       $data["errorMsg"] = "Falha ao enviar.";
   }
} catch (Exception $ex) {
   $data["errorType"] = "danger";
   $data["errorMsg"] = $ex->getMessage();
}

echo json_encode($data);
die;

PS: One thing I didn’t understand was you putting the returns on $_SESSION, it wouldn’t be a good idea in this case.