Fixes E_NOTICE for absent 'port' element (#645)

Signed-off-by: Roland Häder <roland@mxchange.org>

diff --git a/mastodoncustomemojis/mastodoncustomemojis.php b/mastodoncustomemojis/mastodoncustomemojis.php
index d7ce742..ad712ac 100644 (file)
--- a/mastodoncustomemojis/mastodoncustomemojis.php
+++ b/mastodoncustomemojis/mastodoncustomemojis.php
@@ -62,7 +62,7 @@ function mastodoncustomemojis_get_custom_emojis_for_author($author_link)
 
        $url_parts = parse_url($author_link);
 
-       $api_base_url = $url_parts['scheme'] . '://' . $url_parts['host'] . ($url_parts['port'] ? ':' . $url_parts['port'] : '');
+       $api_base_url = $url_parts['scheme'] . '://' . $url_parts['host'] . (isset($url_parts['port']) ? ':' . $url_parts['port'] : '');
 
        $cache_key = 'mastodoncustomemojis:' . $api_base_url;