Loopping dan insert ke database codeigniter

Saya ingin looping saya input ke database, //FORM VIEW

<?php for($i=$d; $i<=$s; $i++):?>
			<tr>
				<td>ayat</td>
				<td><input type="checkbox" class="form-check-input" name="p[]" value="<?php echo $i.'p'; ?>"><?php echo $i.'p'; ?></td>
				<td><input type="checkbox" class="form-check-input" name="k[]" value="<?php echo $i.'k'; ?>"><?php echo $i.'k'; ?></td>
			</tr>
			<?php endfor; ?>

//CONTROLLER

public function input_nilai_uji(){
        $p = $this->input->post('p');
        $k = $this->input->post('k');

        $data = array(
            'p'       => implode(',', $this->input->post('tes',TRUE)),
            'k'       => implode(',', $this->input->post('tes',TRUE))
        );
        $this->m_uji->input_data($data,'uji');
        echo "berhasil";

    }