Magento 2 generate custom log

the custom log file created using below code
for Magento 2.4.2 before version use this : 

$writer = new \Zend\Log\Writer\Stream(BP . '/var/log/custom.log');
$logger = new \Zend\Log\Logger();
$logger->addWriter($writer);
$logger->info('Custom message'); 
$logger->info(print_r($object->getData(), true));

for Magento 2.4.2 or after version use this : 

$writer = new \Laminas\Log\Writer\Stream(BP . '/var/log/custom.log');
$logger = new  \Laminas\Log\Logger();
$logger->addWriter($writer);
$logger->info('text message');
$logger->info(print_r($object->getData(), true));

for Magento 2.4.3 version use this

$writer = new \Zend_Log_Writer_Stream(BP . '/var/log/custom.log');
$logger = new \Zend_Log();
$logger->addWriter($writer);
$logger->info('text message');
$logger->info(print_r($object->getData(), true));

Or you can try this :
file_put_contents(BP . '/var/log/events.log', "$eventName\n", FILE_APPEND);