Proper way to abort export() inside callback?

[mikyk10]

Hi guys,

I want to cap the rows of CSV to certain number and I am not sure if I could safely stop the export process from a callback function, not using exit. Then I came up with throwing an exception to stop the function.

How would you think about this?

Here's example code.

$collection = new CallbackCollection($data, function($row) {
	// apply custom format to the row
	$row[1] = $row[1] . '!';

	// if the data size exceeds a limit
	if (...) {
		throw new \Exception('ABORTED');
	}

	return $row;
});

$config = new ExporterConfig();
$exporter = new Exporter($config);

$exporter->export('php://stdout', $collection);