From cd381db4b8da754f4d473e90d3cc21008d09cbd0 Mon Sep 17 00:00:00 2001
From: Ad Schellevis <ad@opnsense.org>
Date: Tue, 29 Dec 2015 20:14:59 +0100
Subject: [PATCH] (legacy) fix PHP Strict Standards:  Only variables should be
 passed by reference in /usr/local/etc/inc/util.inc on line 861

---
 src/etc/inc/util.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/etc/inc/util.inc b/src/etc/inc/util.inc
index 38bb5e401..edb03b572 100644
--- a/src/etc/inc/util.inc
+++ b/src/etc/inc/util.inc
@@ -858,7 +858,8 @@ function get_interface_list($only_active = false)
 	}
 
 	foreach ($ifnames as $ifname) {
-		if (in_array(array_shift(preg_split('/\d/', $ifname)), $vfaces)) {
+		$tmp_ifnames = preg_split('/\d/', $ifname);
+		if (in_array(array_shift($tmp_ifnames), $vfaces)) {
 			continue;
 		}