From a8c8e8821e9794dce53b2b6daa7d7953f8244221 Mon Sep 17 00:00:00 2001
From: John Okely <john@moodle.com>
Date: Mon, 15 Dec 2014 09:42:19 +0800
Subject: [PATCH] MDL-48587 core: Fix error in getremoteaddr for unsupported
 php versions

---
 lib/moodlelib.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 6eea8812edd..68e1efccd33 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -8630,7 +8630,8 @@ function getremoteaddr($default='0.0.0.0') {
             } else {
                 // Remove port from IPv4.
                 if (substr_count($address, ":") == 1) {
-                    $address = explode(":", $address)[0];
+                    $parts = explode(":", $address);
+                    $address = $parts[0];
                 }
             }