t3lib_div::sysLog('This is a log message', 'myLogFile.txt');
t3lib_div::sysLog('This is a log message', LOG_SYSLOG);This code logs the message "This is a log message" to the system log. The LOG_SYSLOG constant is defined in the PHP syslog function and represents the system log facility. Overall, the php t3lib_div sysLog function is a useful tool for any PHP developer looking to improve their debugging and monitoring capabilities.