Add a log entry.
Parameters
$levelstringrequired- One of the following:
'emergency': System is unusable.
'alert': Action must be taken immediately.
'critical': Critical conditions.
'error': Error conditions.
'warning': Warning conditions.
'notice': Normal but significant condition.
'info': Informational messages.
'debug': Debug-level messages. $messagestringrequired- Log message.
$contextarrayoptional- Additional information for log handlers.
Default:
array()