Change download filename codeigniter - codeigniter

Question

Convert file name before force download.
I am trying to be able to convert the file name of the stored file name to the orignal file name before download
So when user clicks on a file to download instead of showing
post_1486965530_jeJNHKWXPMrwRpGBYxczIfTbaqhLnDVO.php
Like in image below
It will just rename the downloaded file something like
config.php
Question how to only change the downloaded filename when click on image.
public function downloads($id) {
$this->db->where('attachment_id', $id);
$query = $this->db->get('attachments');
if ($query->num_rows() == 0) {
return false;
}
$path = '';
$file = '';
foreach ($query->result_array() as $result) {
$path .= FCPATH . 'uploads/';
// This gives the stored file name
// This is folder 201702
// Looks like 201702/post_1486965530_jeJNHKWXPMrwRpGBYxczIfTbaqhLnDVO.php
$stored_file_name .= $result['attachment_name'];
// Out puts just example "config.php"
$original .= $result['file_name'];
}
force_download($path . $stored_file_name, NULL);
}

Answer 1

How about that
(imho your foreach loop doesn't make any sense)
public function downloads($id) {
$this->db->where('attachment_id', $id);
$query = $this->db->get('attachments');
if ($query->num_rows() == 0) {
return false;
}
$path = '';
$file = '';
foreach ($query->result_array() as $result) {
$path .= FCPATH . 'uploads/';
// This gives the stored file name
// This is folder 201702
// Looks like 201702/post_1486965530_jeJNHKWXPMrwRpGBYxczIfTbaqhLnDVO.php
$stored_file_name .= $result['attachment_name'];
// Out puts just example "config.php"
$original .= $result['file_name'];
}
force_download("your_filename.txt",file_get_contents($path . $stored_file_name));
}

Answer 2

Simple like that!
force_download(
$filenameWithFileExtension,
file_get_contents($fileToDownload),
mime_content_type($fileToDownload)
);

Answer 3

For this situation use force_download() something like this -
$file_name = "using md5 to convert it on normal text and stroe variable";
$file_path = "It's your file path, where have file in your drive"
$file_path = 'uploads/'.$path;
force_download($file_name, file_get_contents($file_path));
It's simple and working fine. Just need to store your file path and file name store in 2 different variables and pass them in force_download().
Hope it's work.
Good Luck.