magento 2 logger code example

Example 1: magento2 zend log

addWriter($writer);
  $logger->info('Your text message');
?>

Example 2: mage log magento 2

addWriter($writer);
  $logger->info('Simple Text Log'); // Simple Text Log
  $logger->info('Array Log'.print_r($myArrayVar, true)); // Array Log
?>

Example 3: magento 2 custom logging

$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/test.log');
$logger = new \Zend\Log\Logger();
$logger->addWriter($writer);
$logger->info('Your text message');

Example 4: log magento 1

Mage::log('message',null,'logfile.log',true);

Example 5: mage log equivalent magento 2

\Magento\Framework\App\ObjectManager::getInstance()->get(\Psr\Log\LoggerInterface::class)->debug('Your message here');