change image name and store it in database with php codeigniter - php

Question

I working on a project with PHP Codeigniter. I want to upload an image, change the name of the image and store it in database (with extension). I have written the following code. It works perfectly but the problem is that the image name is stored without its extension in database. For example, when I run the code, the name that is stored in database is 'imagename', instead of 'imagename.jpg' or 'imagename.png'. I want to store the complete name with extension.
This is my Controller
public function FunctionName()
{
$fname = ucwords($this->input->post('fname'));
$lname = ucwords($this->input->post('lname'));
$prof_pic = $_FILES['profile_pic']['name'];
$config = array ('upload_path' => './images/students/',
'allowed_types' => "jpeg|jpg|png",
'overwrite' => TRUE,
'file_name' => $fname."_".$lname,
'remove_spaces' => TRUE,
'file_ext_tolower' => TRUE
);
$this->load->library('upload', $config);
$this->upload->do_upload('profile_pic');
$image_name = $config['file_name'].".".$config['file_type'];
$data = array('std_fname' => $std_fname,
'std_lname' => $std_lname,
'profile_pic' => $image
);
$this->General_Model->create_record($data, "table_name");
}

Answer 1

To get uploaded file name use
$this->upload->data('file_name');
AS
$this->upload->do_upload('profile_pic');
$image_name = $this->upload->data('file_name');
Read Information about the uploaded file

Answer 2

Try with the below code
$prof_pic = $_FILES['profile_pic']['name'];
$newName = "<Desired name>".".".pathinfo($prof_pic, PATHINFO_EXTENSION);
$config = array ('upload_path' => './images/students/',
'allowed_types' => "jpeg|jpg|png",
'overwrite' => TRUE,
'file_name' => $newName,
'remove_spaces' => TRUE,
'file_ext_tolower' => TRUE
);
the line
$newName = "<Desired name>".".".pathinfo($prof_pic, PATHINFO_EXTENSION);
Will assign the new name with the file extension of the actual file