How to print log with new custom file in Magento 2?

If you want to print your code log in the custom log file, then use the below mention code to print the log in the custom log file.

$StringVar = 'Magemonkeys';
$ArrayVar = array('Magemonkeys', 'Abbacus');

$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/CustomFileName.log');
$logger = new \Zend\Log\Logger();
$logger->addWriter($writer);

$logger->info('Lorem ipsum dolor sit amet...'); // For print simple text in custom log file
$logger->info($StringVar); // For print string in custom log file
$logger->info(print_r($ArrayVar, true)); // For print array in custom log file

$StringVar = 'Magemonkeys';

$ArrayVar = array('Magemonkeys', 'Abbacus');

$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/CustomFileName.log');

$logger = new \Zend\Log\Logger();

$logger->addWriter($writer);

$logger->info('Lorem ipsum dolor sit amet...'); // For print simple text in custom log file

$logger->info($StringVar); // For print string in custom log file

$logger->info(print_r($ArrayVar, true)); // For print array in custom log file

That’s it.

Refresh your page and see your custom log file in Magento /var/log directory. Hope that helps.

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