i have a codeigniter3 project with following view:

{!! form_open('#',array('class'=>'text-left mt-2','id'=>'BOS_FORM','onsubmit'=>"ajax(this,'".$user_base_url."/profil/profil_yonetimi_board_of_sustainability_duzenle');return false;")) !!}
    <input hidden type="hidden" name="AJAX_ISLEM" value="BOS_DUZENLE">
    <input hidden type="hidden" name="ID" value="{{___ssl_encrypt(@$ID)}}">
    <div class="report-id-display">Report ID: {{ ___ssl_encrypt(@$ID) }}</div>
    <div class="panel panel-primary tabs-style-1">
        <div class="panel-body tabs-menu-body main-content-body-right bg-white border">
            <div class="tab-content">
                    {!! FORM_OLUSTUR($BOS,@$REPORT_DB) !!}
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-md-12 col-lg-3 offset-lg-9 mt-3">
            <button class="btn btn-primary btn-with-icon float-right btn-block"><i class="typcn typcn-news"></i>{{ceviri('rapor_yonetimi_duzenle')}}</button>
        </div>
    </div>
{!! form_close() !!}

i retrive the ID value in controller by

$REPORT_ID=___ssl_decrypt($this->input->post('ID'));

but thats null when i get a print of that .

whats the problem and how should i correct?

any guide could you provide?