jQuery dataTables won't send POST array

Question

I have a DataTable that won't pass the data parameter via the POST array. The example from the library documentation (https://datatables.net/reference/option/ajax.data) would seem to indicate that this syntax is correct but a print_r of the $_POST array in the PHP file called indicates that the POST array is empty.

$(document).ready(function() {
var mydatatable = $("#mydatatablediv").DataTable(
{
    "ajax":{
        "url": "path-to-server/backendfile.php",
        "contentType": "application/json",
        "type": "POST",
        "data": {"myeventid":"5"} //replaced with variable in production
    }, //end ajax parameter
    "columns": [
        {"data":"field1","width":"30%"},
        {"data":"field2","width":"20%"},            
        {"data":"field3","width":"5%"},
        {"data":"field4","width":"30%"},
        {"data":"field5","width":"5%"}
    ],
    "paging":false,
    "info":false
});//end dataTable
});//end DOM load

is the javascript file correctly included in the html file with <script> tag?, does the "mydatatablediv" exist in the html? is the datatable library correctly included with <script> tag on the html?, can you see the ajax request firing on the browser's developer tools? — Geomorillo
– Geomorillo, Commented Sep 11, 2015 at 23:30

Rick R. · Accepted Answer · 2015-09-14 15:53:08Z

2

Removing the "contentType": "application/json" parameter resolved the issue. I had added this parameter per the DataTables website documentation at https://datatables.net/reference/option/ajax.data under the 'Submit data as JSON in the request body' section. But as stated, this is not necessary.

answered Sep 14, 2015 at 15:53

Rick R.

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