diff --git a/src/Content/ForumManager.php b/src/Content/ForumManager.php
index d39ea30294..d0aefd3062 100644
--- a/src/Content/ForumManager.php
+++ b/src/Content/ForumManager.php
@@ -105,6 +105,8 @@ class ForumManager
 		if (DBA::isResult($contacts)) {
 			$id = 0;
 
+			$entries = [];
+
 			foreach ($contacts as $contact) {
 				$selected = (($cid == $contact['id']) ? ' forum-selected' : '');
 
diff --git a/src/Content/Widget/TagCloud.php b/src/Content/Widget/TagCloud.php
index f2b94b1114..62301729b7 100644
--- a/src/Content/Widget/TagCloud.php
+++ b/src/Content/Widget/TagCloud.php
@@ -40,6 +40,7 @@ class TagCloud
 			$contact = DBA::selectFirst('contact', ['url'], ['uid' => $uid, 'self' => true]);
 			$url = System::removedBaseUrl($contact['url']);
 
+			$tags = [];
 			foreach ($r as $rr) {
 				$tag['level'] = $rr[2];
 				$tag['url'] = $url . '?tag=' . urlencode($rr[0]);
diff --git a/src/Model/Event.php b/src/Model/Event.php
index cd08c314af..3ce86017ba 100644
--- a/src/Model/Event.php
+++ b/src/Model/Event.php
@@ -644,15 +644,17 @@ class Event extends BaseObject
 	 */
 	private static function formatListForExport(array $events, $format)
 	{
+		$o = '';
+
 		if (!count($events)) {
-			return '';
+			return $o;
 		}
 
 		switch ($format) {
 			// Format the exported data as a CSV file.
 			case "csv":
 				header("Content-type: text/csv");
-				$o = '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
+				$o .= '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
 
 				foreach ($events as $event) {
 					/// @todo The time / date entries don't include any information about the
diff --git a/src/Model/Term.php b/src/Model/Term.php
index 28c28fb1a9..6a213d445b 100644
--- a/src/Model/Term.php
+++ b/src/Model/Term.php
@@ -274,6 +274,7 @@ class Term
 				'network' => $item['author-network'], 'url' => $item['author-link']];
 			$tag['url'] = Contact::magicLinkByContact($author, $tag['url']);
 
+			$prefix = '';
 			if ($tag['type'] == TERM_HASHTAG) {
 				if ($orig_tag != $tag['url']) {
 					$item['body'] = str_replace($orig_tag, $tag['url'], $item['body']);
diff --git a/src/Module/Photo.php b/src/Module/Photo.php
index 994d0efa61..15ea261fb0 100644
--- a/src/Module/Photo.php
+++ b/src/Module/Photo.php
@@ -46,28 +46,29 @@ class Photo extends BaseModule
 		}
 
 		$customsize = 0;
+		$photo = false;
 		switch($a->argc) {
-		case 4:
-			$customsize = intval($a->argv[2]);
-			$uid = self::stripExtension($a->argv[3]);
-			$photo = self::getAvatar($uid, $a->argv[1]);
-			break;
-		case 3:
-			$uid = self::stripExtension($a->argv[2]);
-			$photo = self::getAvatar($uid, $a->argv[1]);
-			break;
-		case 2:
-			$photoid = self::stripExtension($a->argv[1]);
-			$scale = 0;
-			if (substr($photoid, -2, 1) == "-") {
-				$scale = intval(substr($photoid, -1, 1));
-				$photoid = substr($photoid, 0, -2);
-			}
-			$photo = MPhoto::getPhoto($photoid, $scale);
-			if ($photo === false) {
-				$photo = MPhoto::createPhotoForSystemResource("images/nosign.jpg");
-			}
-			break;
+			case 4:
+				$customsize = intval($a->argv[2]);
+				$uid = self::stripExtension($a->argv[3]);
+				$photo = self::getAvatar($uid, $a->argv[1]);
+				break;
+			case 3:
+				$uid = self::stripExtension($a->argv[2]);
+				$photo = self::getAvatar($uid, $a->argv[1]);
+				break;
+			case 2:
+				$photoid = self::stripExtension($a->argv[1]);
+				$scale = 0;
+				if (substr($photoid, -2, 1) == "-") {
+					$scale = intval(substr($photoid, -1, 1));
+					$photoid = substr($photoid, 0, -2);
+				}
+				$photo = MPhoto::getPhoto($photoid, $scale);
+				if ($photo === false) {
+					$photo = MPhoto::createPhotoForSystemResource("images/nosign.jpg");
+				}
+				break;
 		}
 
 		if ($photo === false) {