PHP file download taking all html code instead of file content

Question

Well, as the title implies.

My code is downloading all the html from my page instead of just the content I write in the file.

if(isset($_GET['cpf'])){
                //config
                $namefile = $_GET['nome'].'.txt';
                $content = $_GET['cpf'];

                //save file
                $file = fopen($namefile, "w") or die("Unable to open file!");
                fwrite($file, $content);

                header('Content-Description: File Transfer');
                header('Content-Type: application/octet-stream');
                header('Content-Disposition: attachment; filename="'.basename($namefile).'"');
                header('Expires: 0');
                header('Pragma: public');
                header('Content-Length: '. filesize($file));
               //   ob_clean(); 
                flush();
                readfile($file);

                fpassthru($file);
                fclose($file);
                exit();
            }

I’ve looked over 10 different topics, but none related to my problem.

The ob_clean() delete all, download a blank file.

And yes, I’m trying to download a file txt

Answer 1

Have you ever tried to put an echo before this fwrite? So:

Source: https://www.w3schools.com/php/func_filesystem_fwrite.asp