file name automatically change when i upload the file

Question

I'm new to CodeIgniter and having the following issue. When I upload a file, its successfully uploaded on my local folder and the file name saved to the db. The problem is, file name has been changed after uploading. eg: file name "screenshot image 123.png" -> "screenshot_image_123.png" It just convert the space into underscore;this issue occurred only when the file name having space.Other than this issue all the other files uploading successfully. Given below is my code which I used on my controller page:

public function upload_pic()
{
               $image_path = realpath(APPPATH . '../uploads');
               $config['upload_path'] = $image_path;
               $config['allowed_types'] =   "gif|jpg|jpeg|png";
               $config['file_name'] = $_FILES['file']['name']; 
               $config['encrypt_name'] = TRUE; 
               $config['overwrite'] = TRUE;
               $this->load->library('upload',$config);
               $this->upload->initialize($config);  
               if(!$this->upload->do_upload('file'))
               {
                        echo $this->upload->display_errors();
               }
               else
               {
                        $finfo=$this->upload->data();
                        $data['uploadInfo'] = $finfo;
               }
}

Can anyone help me????

Answer 1

Try before saving file name generate some unique

$filename = $_FILES['file']['name'];
$ext = pathinfo($filename, PATHINFO_EXTENSION);

$filename = sha1_file($filename). md5(date('Y-m-d H:i:s:u')) . '.'. $ext; //not only this you can generate any format



$config['file_name'] = $filename; //Use this file name is db too