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-rw-r--r--lib/util.php3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/util.php b/lib/util.php
index cd9bd9ed8..d1f3bed9e 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -1152,7 +1152,8 @@ function common_negotiate_type($cprefs, $sprefs)
function common_config($main, $sub)
{
global $config;
- return isset($config[$main][$sub]) ? $config[$main][$sub] : false;
+ return (array_key_exists($main, $config) &&
+ array_key_exists($sub, $config[$main])) ? $config[$main][$sub] : false;
}
function common_copy_args($from)