Create cusom log file in magento

• Magento provide support to create own magento log files.It have the function for this purpose in
• app/code/Mage.php
• public static function log($message, $level = null, $file = '') {}
• We just need to call the above function when we need to create log file or storing information in custom log files.
• For example:
• Mage::log('My log entry', null, 'mylogfile.log');