Sending and getting an Array using fnServerParams

monstercables

I am having problems sending and getting data from an array using fnServerParams. Can some one please help?
Thanks my javascript code

var c_year = null;

jQueryNew(document).ready(function(){
    
    c_year = jQueryNew("#tmt_jabatmulai").val() ;

    table_jabeks = jQueryNew('#table_jabeks').dataTable({
        "sDom": '<"toolbar">rl<"clear"><"pesanpesan">tip',
        "bJQueryUI": false,
        "aLengthMenu": [[20, 50, -1], [20, 50, "All"]],
        "iDisplayLength": 20,
        "bAutoWidth": false,
        "bProcessing": true,
        "bServerSide": true,
        "sServerMethod" : "POST",
        "bScrollCollapse": true,
        "sScrollX": "100%",
        "sScrollXInner": "180%",
        "sAjaxSource": "/sdm/laporeksekutif/jsonjabeks",
        "sPaginationType": "full_numbers",
        "bDestroy": true,
        "aoColumns": [{ "bSortable": false, "bSearchable": false, "sWidth": "10px"},
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null,
                        null
                    ],
        "bFilter": true,

"fnServerParams": function ( aoData ) {
            var c_year_param = new Array();
            c_year_param['name'] = 'c_year';
            c_year_param['value'] = c_year;
            aoData.push(c_year_param);
        }
    });


    jQueryNew("#tmt_jabatmulai").change( function() {
        c_year = jQueryNew(this).val();
        table_jabeks.fnDraw();
    });

And in my SQL

$sql    = "FROM e_sdm_pegawai_0_tm AS A
                  JOIN e_sdm_jabatan_eks_0_tm AS B on a.i_peg_nip=b.i_peg_nip
                  LEFT JOIN bumn_master_baruv2 AS C on b.bumn_id=c.bumn_id2
                  LEFT JOIN e_sdm_jabatan_eks_0_tr AS D on b.id_jab=d.id
                  WHERE akhir_tmt IS NOT NULL AND b.awal_tmt>='".$_POST['c_year']."'
                  GROUP BY a.n_peg, a.i_peg_nip, c.bumn_nama, d.nama_jabatan, b.periode, b.awal_tmt, akhir_tmt, b.honorarium, b.tunj_transport, b.tunj_komunikasi, b.tunj_kesehatan, b.i_dok_dossier
                  ";

$dataTableQuery = $this->dataTableQuery($aColumns, $bColumns, $sql);echo $dataTableQuery[0]. $dataTableQuery[1]. $dataTableQuery[2]. $dataTableQuery[3];die();
        $data   = $db->fetchall($dataTableQuery[0]. $dataTableQuery[1]. $dataTableQuery[2]. $dataTableQuery[3]);
            
        $number     = 1;
        $row        = array();
        
        foreach($data as $entry) {
            if ($_POST['c_year'] != 'awal_tmt' && $_POST['c_year'] != 'akhir_tmt'){
                /*if ($entry['is_uploaded'] == 'Y'){
                    $tindakan = '<img src="/dandelion/images/icons/color/pencil_inactive.png">'.
                                 '<img src="/dandelion/images/icons/color/cross_inactive.png">';
                }else{*/
                    $tindakan =  '<a href="#" title="Ubah Data Nama Pegawai" data-skp="'.$entry['id_skp'].'" data-keg="'.$entry['id_keg'].'" class="editSKPKeg"><img src="/dandelion/images/icons/color/pencil.png"></a>
                                    <a href="#" title="Hapus Data Nama Pegawai" data-skp="'.$entry['id_skp'].'" data-keg="'.$entry['id_keg'].'" class="deleteSKPKeg"><img src="/dandelion/images/icons/color/cross.png"></a>';
                //}
            }