Download file with PHP and file_get_contents - php

Question

I would like to download files from a repository, I have the code below, the file is found, but nothing happens...
I have no error.
I used test values for the moment, but I will use GET later.
The target is to donwload the file directly :
$dossier = "../private/cartes_identites/test/";
$filename = "test.png";
$file = $dossier.$filename;
//First, see if the file exists
if (!is_file($file)) { die("<b>404 File not found!</b>"); }
else echo "file exists";
$ext = strrchr( $filename, "." );
switch( $ext ) {
case ".zip": $type = "application/zip"; break;
case ".txt": $type = "text/plain"; break;
case ".pdf": $type = "application/pdf"; break;
case('gif') : $type = "image/gif";break;
case('pnggif') : $type = "image/png";break;
case('jpg') : $type = "image/jpeg";break;
default: $type = "application/octet-stream"; break;
}
echo $ext;
// Constitution de l'header suivant le type
header("Content-Description: File Transfer");
header("Content-Type: $type\n");
header("Content-Transfer-Encoding: binary");
header("Content-disposition: attachment; filename=$filename");
header("Content-Length: ".filesize( $dossier.$filename ) );
// Lecture et Affichage
file_get_contents( $dossier.$filename );
?>

Answer 1

Currently you're just reading the file's content through file_get_contents, but you're never delivering the content to the client.
Either echo the file's content to the user like this
// ...
header("Content-Length: ".filesize( $dossier.$filename ) );
// Lecture et Affichage
echo file_get_contents( $dossier.$filename );
?>
or you can also use the readfile function instead of the file_get_contents like this:
// ...
header("Content-Length: ".filesize( $dossier.$filename ) );
// Lecture et Affichage
readfile( $dossier.$filename );
?>
Also, you should get rid of the echo $ext; and only echo the file content, otherwise it might look like the file's corrupt.