Ajax Error 7

karpad16

https://www.einhunter.com/?page_id=36
Im trying to retrieve data from datatables_demo. I get "DataTables warning: table id=example - Ajax error. For more information about this error, please see http://datatables.net/tn/7"

The server log says "PHP Warning: ltrim() expects parameter 1 to be string, array given in /home6/advando3/public_html/wp-includes/formatting.php on line 4296"

Any help is appreciated. Thanks!

Javascript Code

<script type="text/javascript" charset="utf-8" src="https://code.jquery.com/jquery-3.3.1.js"></script>
<script type="text/javascript" src="https://cdn.datatables.net/1.10.20/js/jquery.dataTables.min.js"></script>
<link rel="stylesheet" type="text/css" href="css/editor.dataTables.min.css"/>
<script>

$(document).ready(function() {
    $('#example').DataTable( {
        "processing": true,
        "serverSide": true,
        "ajax": "php/server_processing.php"
    } );

PHP code

<?php
 
/*
 * DataTables example server-side processing script.
 *
 * Please note that this script is intentionally extremely simple to show how
 * server-side processing can be implemented, and probably shouldn't be used as
 * the basis for a large complex system. It is suitable for simple use cases as
 * for learning.
 *
 * See http://datatables.net/usage/server-side for full details on the server-
 * side processing requirements of DataTables.
 *
 * @license MIT - http://datatables.net/license_mit
 */
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Easy set variables
 */
 
// DB table to use
$table = 'datatables_demo';
 
// Table's primary key
$primaryKey = 'id';
 
// Array of database columns which should be read and sent back to DataTables.
// The `db` parameter represents the column name in the database, while the `dt`
// parameter represents the DataTables column identifier. In this case simple
// indexes
$columns = array(
    array( 'db' => 'first_name', 'dt' => 0 ),
    array( 'db' => 'last_name',  'dt' => 1 ),
    array( 'db' => 'position',   'dt' => 2 ),
    array( 'db' => 'office',     'dt' => 3 ),
    array(
        'db'        => 'start_date',
        'dt'        => 4,
        'formatter' => function( $d, $row ) {
            return date( 'jS M y', strtotime($d));
        }
    ),
    array(
        'db'        => 'salary',
        'dt'        => 5,
        'formatter' => function( $d, $row ) {
            return '$'.number_format($d);
        }
    )
);
 
// SQL server connection information
$sql_details = array(
    'user' => '',
    'pass' => '',
    'db'   => '',
    'host' => ''
);
 
 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * If you just want to use the basic configuration for DataTables with PHP
 * server-side, there is no need to edit below this line.
 */
 
require( 'ssp.class.php' );
 
echo json_encode(
    SSP::simple( $_GET, $sql_details, $table, $primaryKey, $columns )
);

colin

The best place to start is to follow the link in the error message. There'll be diagnostic suggestions in there. Can you do those please and report back,

Colin