How to add file from direct download URL ?

[bastien70]

Description of the problem

I've few .pdf links to include to a .zip archive.
The .pdf links are direct download links, so the code I found here doesn't work.
The .zip archive is generated, but with empty files in here

Example code

$response = new StreamedResponse(function () use ($invoicesLines) {
                $options = new Archive();
                $options->setContentType('application/octet-stream');
                // this is needed to prevent issues with truncated zip files
                $options->setZeroHeader(true);

                //initialise zipstream with output zip filename and options.
                $zip = new ZipStream('invoices.zip', $options);

                foreach ($invoicesLines as $invoice) {
                    $fp = tmpfile();
                    // Download File
                    $ch = curl_init();
                    curl_setopt($ch, CURLOPT_FILE, $fp);
                    curl_setopt($ch, CURLOPT_URL, $invoice->getLink());
                    curl_exec($ch);

                    // Force to write all data
                    fflush($fp);

                    // Rewind to the beginning, otherwise the stream is at the end from the start
                    rewind($fp);

                    // Add File
                    $zip->addFileFromStream(sprintf('%s.pdf', $invoice->getNumber()), $fp);

                    // Close the Temp File
                    fclose($fp);
                }

                $zip->finish();
            });

            $response->headers->set('Content-Type', 'application/vnd.ms-excel');
            $response->headers->set('Content-Disposition', sprintf('attachment;filename="%s"', 'invoices.zip'));
            $response->headers->set('Cache-Control', 'max-age=0');

            return $response;

Informations

• ZipStream-PHP version: 2.1.0
• PHP version: 8.0