Create Download Link PHP - php

Question

I had a problem with my code . when I click the button to download the picture , it appears the code that I do not know, how to solve this ? what is wrong with my code ?
--> Download.php
if (isset($_GET['file']) && basename($_GET['file']) == $_GET['file']) {
$filename = $_GET['file'];
} else {
$filename = NULL;
}
// define error message
$err = '<p style="color:#990000">Sorry, the file you are requesting is unavailable.</p>';
if (!$filename) {
// if variable $filename is NULL or false display the message
echo $err;
} else {
// define the path to your download folder plus assign the file name
$path = '../images/upload/lowongan_pekerjaan/'.$filename;
// check that file exists and is readable
if (file_exists($path) && is_readable($path)) {
// get the file size and send the http headers
$size = filesize($path);
header('Content-Type: application/octet-stream');
header('Content-Length: '.$size);
header('Content-Disposition: attachment; filename='.$filename);
header('Content-Transfer-Encoding: binary');
// open the file in binary read-only mode
// display the error message if file can't be opened
$file = #fopen($path, 'rb');
if ($file) {
// stream the file and exit the script when complete
fpassthru($file);
exit;
} else {
echo $err;
}
} else {
echo $err;
}
}
why show like this?
My Picture
whats wrong with my code?

Answer 1

header('Content-Type: application/octet-stream');
header('Content-Length: '.$size);
header('Content-Disposition: attachment; filename='.$filename);
header('Content-Transfer-Encoding: binary');
should be
header('Content-Type: image/jpg');
header('Content-Length: '.$size);
header('Content-Disposition: attachment; filename='.$filename);
or png or gif or whatever your file type is.. the browser does not know how to handle what you are sending it because application/octet-stream != an image type.