From 8154db31d3cbf212acb7722b9e45863292358d71 Mon Sep 17 00:00:00 2001
From: Kyle Mahan <kyle+github@kylewm.com>
Date: Tue, 5 Jan 2016 17:50:20 -0800
Subject: [PATCH] null-check for $url before checking for key

Comes up for Known which gives funky syndication-target IDs like twitter::kylewmahan.
---
 lib/helpers.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/helpers.php b/lib/helpers.php
index 8f435f0..5121d36 100644
--- a/lib/helpers.php
+++ b/lib/helpers.php
@@ -209,7 +209,7 @@ function get_syndication_targets(&$user) {
 
       // If there's a host, and the host contains a . then we can assume there's a favicon
       // parse_url will parse strings like http://twitter into an array with a host of twitter, which is not resolvable
-      if(array_key_exists('host', $url) && strpos($url['host'], '.') !== false) {
+      if($url && array_key_exists('host', $url) && strpos($url['host'], '.') !== false) {
         $targets[] = array(
           'target' => $t,
           'favicon' => 'http://' . $url['host'] . '/favicon.ico'
@@ -313,4 +313,4 @@ function validate_photo(&$file) {
 
       return $e->getMessage();
   }
-}
\ No newline at end of file
+}