Magento 2 – How to add custom logs in Magento 2 for debugging?

Learn Magento 2 Adobe Commerce / By Saphal

Use below code anywhere is Magento (Only for debugging)

$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/your_log_file_name.log');
$logger = new \Zend\Log\Logger();
$logger->addWriter($writer);
$logger->info('=== Your Comment Here ===');
$logger->info(print_r($value,1)); //true param is important to print the array in log

NOTE: The above code is only for debugging purpose only, you should remove once you done debugging.