- fputcsv: documentation ( source)
- stream_get_contents: documentation ( source)
- fclose: documentation ( source)
- rewind: documentation ( source)
- fopen: documentation ( source)
<?php
$stream = fopen('data://text/plain', 'w+');
fputcsv($stream, array('test','csv "derp"'));
rewind($stream);
$csv = stream_get_contents($stream);
fclose($stream);
echo $csv;