magento2 zend log

1<?php
2  $writer = new \Zend\Log\Writer\Stream(BP . '/var/log/MYLOGFILE.log');
3  $logger = new \Zend\Log\Logger();
4  $logger->addWriter($writer);
5  $logger->info('Your text message');
6?>

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