From c6f8c46709ea3d4cc8b7afaa6f4fff72aa6845c1 Mon Sep 17 00:00:00 2001
From: Ad Schellevis <ad@opnsense.org>
Date: Wed, 13 Mar 2019 10:11:21 +0100
Subject: [PATCH] interfaces, raw config access, leading to `PHP Warning:
 Illegal string offset 'if'`, see https://github.com/opnsense/core/issues/3231

---
 src/etc/inc/interfaces.inc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index 99fd37120..5184e51c5 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -3437,14 +3437,15 @@ function convert_real_interface_to_friendly_interface_name($interface = 'wan')
     }
 
     // search direct
-    foreach ($config['interfaces'] as $if => $ifname) {
+    $all_interfaces = legacy_config_get_interfaces();
+    foreach ($all_interfaces as $if => $ifname) {
         if ($if == $interface || $ifname['if'] == $interface) {
             return $if;
         }
     }
 
     // search related
-    foreach ($config['interfaces'] as $if => $ifname) {
+    foreach ($all_interfaces as $if => $ifname) {
         if (get_real_interface($if) == $interface) {
             return $if;
         }