php8: fix some undefined variables

(cherry picked from commit ed64eba13adf55e564d127e1640409fccca00fd3)

3 files changed, 10 insertions, 5 deletions

diff --git a/Zotlabs/Lib/Libzot.php b/Zotlabs/Lib/Libzot.php
index 6aa49c5a7..db35dfb70 100644
--- a/Zotlabs/Lib/Libzot.php
+++ b/Zotlabs/Lib/Libzot.php
@@ -299,7 +299,6 @@ class Libzot {
 		}
 
 		$record = Zotfinger::exec($url, $channel);
-
 		// Check the HTTP signature
 
 		$hsig = $record['signature'];
diff --git a/Zotlabs/Module/Network.php b/Zotlabs/Module/Network.php
index ee6ff3619..a21095940 100644
--- a/Zotlabs/Module/Network.php
+++ b/Zotlabs/Module/Network.php
@@ -457,6 +457,8 @@ class Network extends \Zotlabs\Web\Controller {
 		if($update && $_SESSION['loadtime'])
 			$simple_update = " AND (( item_unseen = 1 AND item.changed > '" . datetime_convert('UTC','UTC',$_SESSION['loadtime']) . "' )  OR item.changed > '" . datetime_convert('UTC','UTC',$_SESSION['loadtime']) . "' ) ";
 
+		$items = [];
+
 		if($nouveau && $load) {
 			// "New Item View" - show all items unthreaded in reverse created date order
 			$items = q("SELECT item.*, item.id AS item_id, created FROM item
diff --git a/Zotlabs/Widget/Activity_filter.php b/Zotlabs/Widget/Activity_filter.php
index 9200811b4..b7a69752e 100644
--- a/Zotlabs/Widget/Activity_filter.php
+++ b/Zotlabs/Widget/Activity_filter.php
@@ -12,10 +12,14 @@ class Activity_filter {
 		if(! local_channel())
 			return '';
 
-		$cmd = \App::$cmd;
-		$filter_active = false;
-
-		$tabs = [];
+		$filter_active  = '';
+		$dm_active      = '';
+		$events_active  = '';
+		$polls_active   = '';
+		$starred_active = '';
+		$conv_active    = '';
+		$tabs           = [];
+		$cmd            = \App::$cmd;
 
 		if(x($_GET,'dm')) {
 			$dm_active = (($_GET['dm'] == 1) ? 'active' : '');