Symfony force a file to download from a controller

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Good questions. Using your suggestion or php://memory will store the data in memory. If you have MB of CSV data then your PHP process will take at least MB of system memory. Using php://temp will automatically switch to use a temp file when the data is more than a few megabytes. There is a bltadwin.ru setting for this. Downloading of a dynamically generated file from a Symfony controller. In a previous snippet, we saw how to force the dowload of a file that already exists on the file system. But, generally, you want to provide dynamic content like for a CSV export. In this one, we will see how to do with using a temporary system file, so we don't have to. I read that it's the good format to create a csv file. I would like to know I to generate the csv file. If anyone have a solution, it would be awesome. I'm on it for a week and I'm totally lost. Thanks. EDIT: By the way I tried this solution How to force download bltadwin.ru file in Symfony 2, using Response object? It download a file but it's empty.

The Symfony base controller is a utility class that includes several helper methods for common controller tasks and provides direct access to the service container. In Symfony we added a new helper method called file() to simplify serving binary files. The simplest way to use the file() helper is to pass the path of the file to download. The browser will force the download of this file and it will assign it the same name as the original file. As of Symfony you can use the file() controller helper which is a shortcut for creating a BinaryFileResponse as mentioned in a previous answer: public function fileAction() { // send the file contents and force the browser to download it return $this-file('/path/to/some_bltadwin.ru'); }. I read that it's the good format to create a csv file. I would like to know I to generate the csv file. If anyone have a solution, it would be awesome. I'm on it for a week and I'm totally lost. Thanks. EDIT: By the way I tried this solution How to force download bltadwin.ru file in Symfony 2, using Response object? It download a file but it's empty.