php与ajax集成

Question

I have a record of carriers and clients. When selecting a carrier on the customer screen, I need it to be automatically filled out the carrier's e-mail and telephone. The PHP file is returning a JSON correctly, but it is dropping in the error of jquery and not in success. I checked in Firefox's Firebug and the HTML tab of the console, where the GET requisition is reset.

<?php
include "Config/config_sistema.php";
$res = mysql_query("SELECT * FROM transportadoras");
$menu_items = null;
while($ln = mysql_fetch_object($res)){
    $menu_items[] = $ln;
}
json_encode($menu_items);
?>

<script>
    $("body").on("change","#transportadoras",function(event){
        event.preventDefault();
        var trigger=$(this);
        $.ajax ({
            type: "POST",
            url: "buscaDadosTransportadora.php",
            dataType: 'json',
            success: function (data) {
                $("#telefone_transp").val(data.telefone);
                $("#email_transp").val(data.email);
            },
            error: function (data) {
                alert("Erro");
            },
        });
    });
</script>   

return in ajax

[{"ID":"5","Nome":"Vinicius","email":"[e-mail]","telefone":"32680018"},{"ID":"6","Nome":"teste","email":"[e-mail]","telefone":"12345567"}]

Answer 1

You response is array .

[{"ID":"5","Nome":"Vinicius","email":"[e-mail]","telefone":"32680018"},....]

you should loop through data.

 success: function (data) {
    $.each(data,function(user){ /* code ...*/});           
 }

If you want some current row select one row from mysql .