Currently my logger is set up like this:
$logger = new Zend\Log\Logger();
$logger->addWriter(new Zend\Log\Writer\Stream('php://stdout'));
The downside: Both $logger->err() and $logger->info() now print to stdout. However, I’d like the former to print to stderr? Can I assign certain writers to priorities? So anything <= Zend\Log\Logger::ERR ends up in stderr while anything else in stdout?
You can add as many writers as you want, and filter them by their priority.
// Add ERROR writer
$logger = new Logger();
$errorWriter = new Stream('php://stdout');
// Filter logs only for ERROR priority
$errorWriter->addFilter(new Priority(Logger::ERR, '='));
$logger->addWriter($errorWriter);
// Add INFO writer
$infoWriter = new Stream('php://stderr');
// Filter logs only for INFO priority
$infoWriter->addFilter(new Priority(Logger::INFO, '='));
$logger->addWriter($infoWriter);
You can find more information in the docs: