使用jQuery从数据库填充下拉列表

I want to populate the dropdown list from database using jQuery. But when i tried, i am getting empty response. see below code I didn't see any error.

PHP code to get data:

if ($dat=="driver") {
    $q = "select * from drivers";
    $sql = mysql_query($q);
    $data = array();
    while($row = mysql_fetch_array($sql, true)){
        $data[] = $row; 
    };
    echo json_encode($data);
}

jQuery code:

$.getJSON("get-data.php?dat=driver",function(data){
    $.each(data,function(key,val) {
        $("#night_Shift_text").append(
            $("<option></option>").val(value.id).html(value.id)
        );     
    });
});

HTML:

<select id='night_Shift_text'><option></option></select>

Debug console:

Use a string to store your option, and then append it to the select tag. Then, please check that data is there in the val.

$.getJSON("get-data.php?dat=driver",function(data){
    var stringToAppend = "";
    $.each(data,function(key,val) {

       stringToAppend += "<option value='" + val.id + "'>" + val.id + "</option>";

    });

    $("#night_Shift_text").html(stringToAppend);
});

You are using wrong variable value. You need to use val

        $("<option></option>").val(val.id).html(val.id);