php - How to upload photo in a folder and save path in the database using CodeIgniter -

im trying add image folder , path database i've tried figure out how go nothing working. please help. here's controller

function index() {                $this->form_validation->set_rules('username', 'username', 'required|trim|xss_clean');                $this->form_validation->set_rules('photo', 'photo', 'required|trim|xss_clean');                                  $this->form_validation->set_rules('password', 'password', 'required|trim|xss_clean');                         $this->form_validation->set_error_delimiters('<br /><span class="error">', '</span>');      if ($this->form_validation->run() == false) // validation hasn't been passed     {         $this->load->view('registration');     }     else // passed validation proceed post success logic     {         // build array model          $form_data = array(                         'username' => set_value('username'),                         'photo' => set_value('photo'),                         'password' => set_value('password')                                       );          // run insert model write data db          if ($this->kint_model->saveform($form_data) == true) // information has therefore been saved in db         {             redirect('user_registration/success');   // or whatever logic needs occur         }         else         {         echo 'an error occurred saving information. please try again later';         // or whatever error handling necessary         }     } } function success() {         echo 'user registered successfully'; } 

here's model

class kint_model extends ci_model {      function __construct()     {         parent::__construct();     }      function saveform($form_data)     {         $this->db->insert('users', $form_data);          if ($this->db->affected_rows() == '1')         {             return true;         }          return false;     } } 

and here's view

<?php // change css classes suit needs      $attributes = array('class' => '', 'id' => ''); echo form_open('user_registration', $attributes); ?>  <p>         <label for="username">username <span class="required">*</span></label>         <?php echo form_error('username'); ?>         <br /><input id="username" type="text" name="username"  value="<?php echo set_value('username'); ?>"  /> </p>  <p>         <label for="photo">photo <span class="required">*</span></label>         <?php echo form_error('photo'); ?>         <br /><input id="photo" type="text" name="photo"  value="<?php echo set_value('photo'); ?>"  /> </p>  <p>         <label for="password">password <span class="required">*</span></label>         <?php echo form_error('password'); ?>         <br /><input id="password" type="text" name="password"  value="<?php echo set_value('password'); ?>"  /> </p>  <p>         <?php echo form_submit( 'submit', 'submit'); ?> </p>  <?php echo form_close(); ?> 

controller:

function index() {                $this->form_validation->set_rules('username', 'username', 'required|trim|xss_clean');                             $this->form_validation->set_rules('password', 'password', 'required|trim|xss_clean');                         $this->form_validation->set_error_delimiters('<br /><span class="error">', '</span>');      if ($this->form_validation->run() == false) // validation hasn't been passed     {         $this->load->view('registration');     }     else      {          $form_data = array(                         'username' => $this->input->post('username'),                         'photo' => '',                         'password' => $this->input->post('password')                           );               $uploadpreferences = array(                'upload_path'   => './uploads/fullsize',              'allowed_types' => 'gif|jpg|png',                 'encrypt_name'  => true               );           $this->upload->initialize($uploadpreferences);             $this->upload->do_upload('photo');              $photoinfo = $this->upload->data();              $form_data['photo'] = $photoinfo['full_path'];         if ($this->kint_model->saveform($form_data) == true) // information has therefore been saved in db         {             redirect('user_registration/success');   // or whatever logic needs occur         }         else         {         echo 'an error occurred saving information. please try again later';         // or whatever error handling necessary         }     } } function success() {         echo 'user registered successfully'; } 

view:

    <?php // change css classes suit needs      $attributes = array('class' => '', 'id' => ''); echo form_open('user_registration', $attributes); ?>  <p>         <label for="username">username <span class="required">*</span></label>         <?php echo form_error('username'); ?>         <br /><input id="username" type="text" name="username"  value="<?php echo set_value('username'); ?>"  /> </p>  <p>         <label for="photo">photo <span class="required">*</span></label>         <?php echo form_error('photo'); ?>         <br /><input type="file" name="photo" multiple="multiple" /> </p>  <p>         <label for="password">password <span class="required">*</span></label>         <?php echo form_error('password'); ?>         <br /><input id="password" type="text" name="password"  value="<?php echo set_value('password'); ?>"  /> </p>  <p>         <?php echo form_submit( 'submit', 'submit'); ?> </p>  <?php echo form_close(); ?> 

it untested.

read also:

http://ellislab.com/codeigniter/user-guide/libraries/file_uploading.html

do : var_dump($this->upload->data()); also.