Background:
In newer versions of PHP the syslog logging is forced to multiline logging
and it's not possible to turn this off. This is especially problematic
when you have a lot of logging and need to search and find connected lines
from a single call to syslog(). For example when debugging multiline
sql-queries.
Test code:
syslog(LOG_INFO, "test1\t\ttest2\ntest3");
Old behaviour (PHP 5.4.16 (cli) - CentOS 7):
Jun 15 08:55:45 server php: test1#011#011test2#012test3
New behaviour (PHP 7.4 (dev)- CentOS 7):
Jun 15 08:55:45 server php: test1\x09\x09test2
Jun 15 08:55:45 server php: test3
After patch and with configuration value (syslog.filter=raw):
Jun 15 08:55:45 server php: test1#011#011test2#012test3
Suggested change:
This patch includes a new configuration value for syslog.filter (raw)
which allows to send the logging data in it's raw form to the syslog. The
code for the other configuration values should be untouched by this
change.
Link to pull request:
https://github.com/php/php-src/pull/4265
--
Regards, Erik Lundin