JSTree Menu

<div id="selection">
                    <ul>
                        <li data-jstree='{"icon" : "fa fa-building-o"}'>
                            <a href="<?php echo site_url('admin/penduduk/id/3320'); ?>">KABUPATEN JEPARA</a>
                        </li>
                        <?php
                        $listKecamatan = $this->penduduk_m->select_kecamatan()->result();
                        foreach($listKecamatan as $k) {
                        ?>
                        <li data-jstree='{"icon" : "fa fa-arrow-circle-o-right"}'>
                            <?php
                            $kecamatan_id = $k->kecamatan_id;
                            ?>
                            <a href="<?php echo site_url('admin/penduduk/kecamatan/'.$k->kecamatan_id); ?>"><?php echo 'KECAMATAN '.strtoupper($k->kecamatan_nama); ?></a>
                            <?php
                            $listDesa = $this->penduduk_m->select_desa($kecamatan_id)->result();
                            if (count($listDesa) > 0) {
                            ?>
                            <ul>
                                <?php foreach($listDesa as $d) { ?>
                                <li data-jstree='{"icon" : "fa fa-angle-right"}'>
                                    <a href="<?php echo site_url('admin/penduduk/desa/'.$d->desa_id); ?>"><?php echo 'DESA '.strtoupper($d->desa_nama); ?></a>
                                </li>
                                <?php } ?>
                            </ul>
                            <?php } ?>
                        </li>
                        <?php } ?>
                    </ul>
                </div>