From 36e25bafe07837861208d69c46d9dc8c404d4907 Mon Sep 17 00:00:00 2001
From: Pierre Lannoy <pierre@lannoy.fr>
Date: Thu, 3 Sep 2020 14:22:34 +0200
Subject: [PATCH] Support for extended RFC5424 timestamp format

As described in [RFC5424 Timestamp format](https://tools.ietf.org/html/rfc5424#section-6.2.3), it is allowed to send second fraction as doted mili (3 digits) or micro (6 digits) in syslog messages. I suggest this modest PR to support it.
---
 src/Monolog/Handler/SyslogUdpHandler.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Monolog/Handler/SyslogUdpHandler.php b/src/Monolog/Handler/SyslogUdpHandler.php
index 4c8a6c0f..75ce293f 100644
--- a/src/Monolog/Handler/SyslogUdpHandler.php
+++ b/src/Monolog/Handler/SyslogUdpHandler.php
@@ -25,10 +25,12 @@ class SyslogUdpHandler extends AbstractSyslogHandler
 {
     const RFC3164 = 0;
     const RFC5424 = 1;
+    const RFC5424e = 2;
 
     private $dateFormats = array(
         self::RFC3164 => 'M d H:i:s',
         self::RFC5424 => \DateTime::RFC3339,
+        self::RFC5424e => \DateTime::RFC3339_EXTENDED,
     );
 
     protected $socket;