It is tempting to simply generate CSV data with writing comma-separated array-values.
Unfortunately this obvious way of doing turns out to be a bad idea. Often it seems to be working at first, but eventually you’ll be faced with annoying bugs, wrongly escaped data.
Fortunately, PHP has a native function to write CSV values to a file.
With a little trick you can use this function to write values to the screen.
Use the built-in streamwrappers:
$outstream = fopen("php://output", 'w'); fputcsv($outstream, $data_array, ',', '"'); fclose($outstream);
This will echo the data to the screen.
Most people won’t know `php://output`. A pity it’s really powerful.