use Monolog\Logger;
use Monolog\Log;
use Monolog\Writer\FileWriter;
use Monolog\Formatter\SimpleFormatter;

// create a log with writers/formatters
$writer = new FileWriter('path/to/your.log');
$writer->setFormatter(new SimpleFormatter());
$log = new Log('name', Logger::WARN, $writer);

// create a logger with one or more logs
$logger = new Logger(array($log));

// write to all logs
$logger->addWarning('Foo');

// write only to the 'name' log
$logger->addError('Bar', 'name');

Todo

Log rotation for FileWriter
FirePHP writer
Syslog writer

Author

Jordi Boggiano - j.boggiano@seld.be - http://twitter.com/seldaek

License

Monolog is licensed under the MIT License - see the LICENSE file for details

Requirements

Any flavor of PHP5.3 should do