PHP 7.2. When I use:
error_log('test');
in the error log I see an entry:
[31-Jan-2020 20:05:28 UTC] test
(note the date/time in the beginning of the line)
When I use:
error_log('test',3, 'my_error_log');
I just got:
test
in the 'my_error_log' file - there is no date time at the beginning. Even new lines are not added automatically.
Why two error_log calls produce different output? How can I control it?
In the first case, the error_log probably outputs to the default log file whose location depends on the server's software which prepends your message with a datetime string.
error_log does not prepend strings.
Even new lines are not added automatically.
According to the PHP docs, when you choose message_type with a value of 3, new lines aren't automatically added. https://www.php.net/manual/en/function.error-log.php
