Server upload file error

HI sorry for english in one project i use dropzone to send image or pdf to server with ajax , this is my function :

PHP Code:

    public function dropzone_estratti_conto()
    {
        

        //recupero le informazioni del file
        $img = $this->request->getFile('userfile');

        $targetDir = FCPATH . '/xyz_xrh/documenti_personali/'.$this->session->get('user_id');


        //recupero tutti i valori via post
        $post = $this->request->getPost();

        $post['nome_file_originale'] = $img->getName();
 


        //creo un nome casuale
        $newName =$post['id_isee'].'*estratti_conto*'.time().'*'.$img->getName();
        
        //lo rinomino
        if($img->move($targetDir, $newName)){

            //istanzio il model 
            $isee_documenti_estratto_conto_model = new Isee_documenti_estratto_contoModel();

            $post['nome_file'] =$newName ;

            //inserisco i valori nel db 
            $res=$isee_documenti_estratto_conto_model->save($post);

            $id_tabella = $isee_documenti_estratto_conto_model->getInsertID();
         }


            echo "{}";


        
    } 


The name are stored in db but the file there'arent , how is it possible ?i have more than 1000 record and only this time i have this problem.... Can i add more control to increase security ?

Sometime it work and sometime it doesn't? Are sure the filename is a valid filename for your filesystem and the target directory is writable?

Sometime it work and sometime it doesn't? Are sure the filename is a valid filename for your filesystem and the target directory is writable?

I found the file out of folder as $this->session->get('user_id')  is empty , how can i prevent it ?

That tells me that you have an error in your code someplace that is over writing or not saving the users id.

I would backtrace an check my session code.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

That tells me that you have an error in your code someplace that is over writing or not saving the users id.

I would backtrace an check my session code.

This is the path where i save file :


$targetDir = FCPATH . '/xyz_xrh/documenti_personali/'.$this->session->get('user_id');

Because the file are uploaded by ajax , to solve the problem i must refresh my project to control if session are set . Is There a way to do this for all page ? 

Change your code to this and see if you get the same results.

PHP Code:

$targetDir = FCPATH . '/xyz_xrh/documenti_personali/'.session('user_id'); 


Also what type of sessions are you running file, database etc;

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

Change your code to this and see if you get the same results.

PHP Code:

$targetDir = FCPATH . '/xyz_xrh/documenti_personali/'.session('user_id'); 


Also what type of sessions are you running file, database etc;

i use file , can i set : 

Code:

$sessionExpiration = 0; 

to prevent ?in this way if browser is open $this->session->get('user_id') is set until the user  close browser

Yes you can the way I showed you is using the session helper.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )