logs magento code example
Example 1: mage log magento 2
<?php
$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/logfile.log');
$logger = new \Zend\Log\Logger();
$logger->addWriter($writer);
$logger->info('Simple Text Log'); // Simple Text Log
$logger->info('Array Log'.print_r($myArrayVar, true)); // Array Log
?>
Example 2: log magento 1
Mage::log('message',null,'logfile.log',true);