Initial Beginning with mysql + ajax + datatables

cybermailer

Hi everybody,

i want to learn how to use datatables.

But everytime i'm starting i'm getting an json error. (table id = example invalid json ....)

What have i done:

1. integrate the resources:

<script type="text/javascript" src="../js/jquery-1.11.1.min.js"></script>
<script type="text/javascript" src="../js/jquery-1.11.1.js"></script>

<!-- link jquery ui resources -->
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>

<!-- link bootstrap resources -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>


<!-- link calendar resources -->
<link rel="stylesheet" type="text/css" href="../css/tcal.css" />
<script type="text/javascript" src="../js/tcal.js"></script> 

<!-- link datatables resources -->
<script src="http://cdn.datatables.net/1.10.2/js/jquery.dataTables.min.js"></script>
<link rel="stylesheet" type="text/css" href="http://cdn.datatables.net/1.10.2/css/jquery.dataTables.css" />

1. create the mysql table datatables_demo

2. third put code into htmls body

Firmenbezeichnung	Vorname	Nachname	Email	Telefon	Bemerkung
Firmenbezeichnung	Vorname	Nachname	Email	Telefon	Bemerkung

    <script> 
    $(document).ready(function() {
    $('#example').dataTable( {
        "processing": true,
        "serverSide": true,
        "ajax": "customer/customer_server_processing_simple.php"
        } );
    } ); 
    </script>

1. adopt server configuration information

customer_server_processing_simple.php

1. Getting the error Error. The Framework without data is correctly shown.
   Also question: do i need this file to work correctly: require( 'ssp.class.php' ); ?
   First i want to get the simple example running...

THX in advance!