// Server file: secret_id_99.pdf -> User sees: Invoice_March.pdf return $this->response->download('Invoice_March.pdf', WRITEPATH . 'docs/secret_id_99.pdf'); Use code with caution.
You can offer a file under a different name than its server-side filename by passing the desired name as the first argument and the server path as the second. codeigniter 4 download file
To serve a file already stored on your server, provide the file path as the first argument. Set the second argument to null . // Server file: secret_id_99
public function downloadReport($filename) { // Path to the file (e.g., in the writable folder) $path = WRITEPATH . 'uploads/' . $filename; if (file_exists($path)) { return $this->response->download($path, null); } throw \CodeIgniter\Exceptions\PageNotFoundException::forPageNotFound(); } Use code with caution. To serve a file already stored on your
Efficiently managing file downloads in CodeIgniter 4 (CI4) is essential for applications handling reports, user uploads, or private documents. Unlike older versions that relied on helpers, CI4 uses the powerful Response object to handle downloads securely and with minimal code.
public function downloadText() { $data = 'This is dynamically generated content.'; $name = 'my_note.txt'; return $this->response->download($name, $data); } Use code with caution. Renaming Files During Download