Bug #77913 [Opn]: error_log via syslog: PHP will split msg on line break

Edit report at https://bugs.php.net/bug.php?id=77913&edit=1 ID: 77913 User updated by: whissi at whissi dot de Reported by: whissi at whissi dot de Summary: error_log via syslog: PHP will split msg on line break Status: Open Type: Bug Package: *General Issues PHP Version: 7.3.4 Block user comment: N Private report: N New Comment: And if this was a desired change, maybe rename "syslog.filter=no-ctrl" to "syslog.filter=no-ctrl-but-line-breaks" :-) I.e. you either _filter_ all ctrl chars like the option says or none. But filtering some but handle/interpret others isn't good. Previous Comments: ------------------------------------------------------------------------ [2019-04-16 19:43:40] whissi at whissi dot de Not when this is a backward incompatible change. Of course, if this was a desired change, please add it to https://www.php.net/manual/en/migration73.incompatible.php and in addition please provide a way to send multi-line messages. ------------------------------------------------------------------------ [2019-04-16 19:36:08] requinix@php.net Isn't it a good thing that the line break is being recognized and handled? ------------------------------------------------------------------------ [2019-04-16 17:40:33] whissi at whissi dot de Even with "syslog.filter=no-ctrl" when you would expect a syslog message like > Apr 16 16:54:09 myhost php: This is line #1This is line #2 because PHP has filtered control chars like line break, you end up with two messages, so filtering doesn't work as expected. ------------------------------------------------------------------------ [2019-04-16 17:35:56] whissi at whissi dot de Description: ------------ PHP 7.3 introduced "syslog.filter" to control content send to syslog. According to documentation (https://www.php.net/manual/en/errorfunc.configuration.php#ini.syslog.filter), "syslog.filter=all" should allow all characters (=same behavior like in PHP 7.2 or before). However, even when set "syslog.filter=all" to allow all characters including line breaks, when you now send a multi-line message via error_log() through syslog, PHP splits message on line break so you end up with multiple messages instead of sending one single message like before. Test script: --------------- <?php $message = "This is line #1" . PHP_EOL; $message .= "This is line #2"; $iniSetting = ini_get('error_log'); if ($iniSetting !== 'syslog') { die("You must set error_log=syslog!"); } if (version_compare(phpversion(), '7.3', '>')) { $iniSetting = ini_get('syslog.filter'); if ($iniSetting !== 'all') { die("You must set syslog.filter=all!"); } } error_log($message); print "Now please review your syslog!" . PHP_EOL; Expected result: ---------------- When running test script like > /usr/bin/php7.3 -d error_log=syslog -d syslog.filter=all test.php I would expect one single syslog message like > Apr 16 16:52:06 myhost php: This is line #1#012This is line #2 Actual result: -------------- I am getting _two_ messages: > Apr 16 16:53:20 myhost php: This is line #1 > Apr 16 16:53:20 myhost php: This is line #2 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77913&edit=1