php - ajaxfileupload issue with CodeIgniter -


i working on uploading image asynchronously , got this tutorial. read , tried remove model don't need , make according needs, when run no error , file not uploaded either.

i put 1 echo in controller upload function, don't echo string either, though put full path in ajaxfileupload url.

here view:

<!doctype html> <html>     <head>         <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>         <script src="<?php echo site_url()?>public/assets/js/ajaxfileupload.js"></script>         <script>             $(function() {                 $('#upload_file').submit(function(e) {                     e.preventdefault();                     $.ajaxfileupload({                         url          : 'upload2/upload_file',                         secureuri    :  false,                         fileelementid: 'userfile',                         datatype     : 'json',                         data         : {                                            'title': $('#title').val()                                        },                         success : function (data, status)                         {                             if(data.status != 'error')                             {                                 $('#files').html('<p>reloading files...</p>');                                 refresh_files();                                 $('#title').val('');                             }                             alert(data.msg);                         }                     });                     return false;                 });             });         </script>     </head>     <body>           <h1>upload file</h1>           <form method="post" action="" id="upload_file">           <label for="title">title</label>           <input type="text" name="title" id="title" value="" />            <label for="userfile">file</label>           <input type="file" name="userfile" id="userfile" size="20" />            <input type="submit" name="submit" id="submit" />           </form>           <h2>files</h2>           <div id="files"></div>     </body> </html>

and controller this:

<?php     class upload2 extends ci_controller     {         public function __construct()         {             parent::__construct();              $this->load->helper('url');         }          public function index()         {             $this->load->view('upload');         }         public function upload_file()         {             /* it's not showing me echo , path                ok too, , put whole path no result. */              echo "in upload_file";             $status = "";             $msg = "";             $file_element_name = 'userfile';              if (empty($_post['title']))             {                 $status = "error";                 $msg = "please enter title";             }              if ($status != "error")             {                 $config['upload_path'] = './uploads/';                 $config['allowed_types'] = 'gif|jpg|png|doc|txt';                 $config['max_size']  = 1024 * 8;                 $config['encrypt_name'] = true;                  $this->load->library('upload', $config);                  if (!$this->upload->do_upload($file_element_name))                 {                     $status = 'error';                     $msg = $this->upload->display_errors('', '');                 }                 else                 {                     $data = $this->upload->data();                     $file_id = $this->files_model->insert_file($data['file_name'], $_post['title']);                     if($file_id)                     {                         $status = "success";                         $msg = "file uploaded";                     }                     else                     {                         unlink($data['full_path']);                         $status = "error";                         $msg = "something went wrong when saving file, please try again.";                     }                 }                 @unlink($_files[$file_element_name]);             }             echo json_encode(array('status' => $status, 'msg' => $msg));         }     } ?>

add attribute form enctype="multipart/form-data"


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