Merge pull request #14559 from Art4/phpstan-level-1

Phpstan level 1
2024-11-30 21:40:29 -05:00 · 2024-11-30 21:40:29 -05:00 · e34d38182c
parent a06e18a4bd bdae3c56c0
commit e34d38182c
88 changed files with 618 additions and 482 deletions
--- a/.phpstan.neon
+++ b/.phpstan.neon
@ -3,12 +3,16 @@
 # SPDX-License-Identifier: CC0-1.0

 parameters:
-    level: 0
+    level: 1

    paths:
        - src/

    scanDirectories:
        - mod
+        - static
        - vendor
        - view
+
+    dynamicConstantNames:
+        - DB_UPDATE_VERSION
--- a/doc/AddonStorageBackend.md
+++ b/doc/AddonStorageBackend.md
@ -341,13 +341,13 @@ function samplestorage_storage_uninstall()
 	DI::storageManager()->unregister(SampleStorageBackend::class);
 }

-function samplestorage_storage_instance(App $a, array &$data)
+function samplestorage_storage_instance(AppHelper $appHelper, array &$data)
 {
 	$config          = new SampleStorageBackendConfig(DI::l10n(), DI::config());
 	$data['storage'] = new SampleStorageBackendConfig($config->getFileName());
 }

-function samplestorage_storage_config(App $a, array &$data)
+function samplestorage_storage_config(AppHelper $appHelper, array &$data)
 {
 	$data['storage_config'] = new SampleStorageBackendConfig(DI::l10n(), DI::config());
 }
--- a/doc/autoloader.md
+++ b/doc/autoloader.md
@ -46,9 +46,9 @@ The code will be something like:
 // mod/network.php
 <?php

-use Friendica\App;
+use Friendica\AppHelper;

-function network_content(App $a) {
+function network_content(AppHelper $appHelper) {
 	$itemsmanager = new \Friendica\ItemsManager();
 	$items = $itemsmanager->getAll();

--- a/src/App.php
+++ b/src/App.php
@ -447,6 +447,7 @@ class App implements AppHelper
 		$requeststring = ($server['REQUEST_METHOD'] ?? '') . ' ' . ($server['REQUEST_URI'] ?? '') . ' ' . ($server['SERVER_PROTOCOL'] ?? '');
 		$this->logger->debug('Request received', ['address' => $server['REMOTE_ADDR'] ?? '', 'request' => $requeststring, 'referer' => $server['HTTP_REFERER'] ?? '', 'user-agent' => $server['HTTP_USER_AGENT'] ?? '']);
 		$request_start = microtime(true);
+		$request = $_REQUEST;

 		$this->profiler->set($start_time, 'start');
 		$this->profiler->set(microtime(true), 'classinit');
@ -581,7 +582,7 @@ class App implements AppHelper

 			// Processes data from GET requests
 			$httpinput = $httpInput->process();
-			$input     = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
+			$input     = array_merge($httpinput['variables'], $httpinput['files'], $request);

 			// Let the module run its internal process (init, get, post, ...)
 			$timestamp = microtime(true);
--- a/src/App/BaseURL.php
+++ b/src/App/BaseURL.php
@ -103,6 +103,8 @@ class BaseURL extends Uri implements UriInterface
 	 * @throws HTTPException\TemporaryRedirectException
 	 *
 	 * @throws HTTPException\InternalServerErrorException In Case the given URL is not relative to the Friendica node
+	 *
+	 * @return never
 	 */
 	public function redirect(string $toUrl = '', bool $ssl = false)
 	{
--- a/src/App/Router.php
+++ b/src/App/Router.php
@ -334,17 +334,17 @@ class Router

 		$stamp = microtime(true);

-		try {
 		/** @var ICanHandleRequests $module */
-			return $this->dice->create($moduleClass, $this->parameters);
-		} finally {
+		$module = $this->dice->create($moduleClass, $this->parameters);
+
 		if ($this->dice_profiler_threshold > 0) {
 			$dur = floatval(microtime(true) - $stamp);
 			if ($dur >= $this->dice_profiler_threshold) {
 				$this->logger->notice('Dice module creation lasts too long.', ['duration' => round($dur, 3), 'module' => $moduleClass, 'parameters' => $this->parameters]);
 			}
 		}
-		}
+
+		return $module;
 	}

 	/**
--- a/src/BaseModule.php
+++ b/src/BaseModule.php
@ -245,10 +245,10 @@ abstract class BaseModule implements ICanHandleRequests

 			$this->response->setStatus($e->getCode(), $e->getMessage());
 			$this->response->addContent($httpException->content($e));
-		} finally {
-			$this->profiler->set(microtime(true) - $timestamp, 'content');
 		}

+		$this->profiler->set(microtime(true) - $timestamp, 'content');
+
 		return $this->response->generate();
 	}

@ -269,7 +269,7 @@ abstract class BaseModule implements ICanHandleRequests
 			$request[$parameter] = $this->getRequestValue($input, $parameter, $defaultvalue);
 		}

-		foreach ($input ?? [] as $parameter => $value) {
+		foreach ($input as $parameter => $value) {
 			if ($parameter == 'pagename') {
 				continue;
 			}
@ -456,7 +456,7 @@ abstract class BaseModule implements ICanHandleRequests
 	 * @param string      $content
 	 * @param string      $type
 	 * @param string|null $content_type
-	 * @return void
+	 * @return never
 	 * @throws HTTPException\InternalServerErrorException
 	 */
 	public function httpExit(string $content, string $type = Response::TYPE_HTML, ?string $content_type = null)
@ -493,7 +493,7 @@ abstract class BaseModule implements ICanHandleRequests
 	 * @param mixed  $content
 	 * @param string $content_type
 	 * @param int    $options A combination of json_encode() binary flags
-	 * @return void
+	 * @return never
 	 * @throws HTTPException\InternalServerErrorException
 	 * @see json_encode()
 	 */
@ -508,7 +508,7 @@ abstract class BaseModule implements ICanHandleRequests
 	 * @param int    $httpCode
 	 * @param mixed  $content
 	 * @param string $content_type
-	 * @return void
+	 * @return never
 	 * @throws HTTPException\InternalServerErrorException
 	 */
 	public function jsonError(int $httpCode, $content, string $content_type = 'application/json')
--- a/src/Console/MoveToAvatarCache.php
+++ b/src/Console/MoveToAvatarCache.php
@ -12,7 +12,6 @@ use Friendica\Contact\Avatar;
 use Friendica\Core\L10n;
 use Friendica\Model\Contact;
 use Friendica\Model\Photo;
-use Friendica\Util\Images;
 use Friendica\Object\Image;
 use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\Protocol;
@ -115,6 +114,10 @@ HELP;

 	private function storeAvatar(string $resourceid, array $contact, bool $quit_on_invalid)
 	{
+		$photo   = false;
+		$imgdata = false;
+		$image   = null;
+
 		$valid = !empty($resourceid);
 		if ($valid) {
 			$this->out('1', false);
@ -143,7 +146,7 @@ HELP;
 			}
 		}

-		if ($valid) {
+		if ($valid && $image instanceof Image) {
 			$this->out('4', false);
 			$fields = Avatar::storeAvatarByImage($contact, $image);
 		} else {
--- a/src/Content/ContactSelector.php
+++ b/src/Content/ContactSelector.php
@ -142,17 +142,18 @@ class ContactSelector
 		$replace = array_values($nets);

 		$networkname = str_replace($search, $replace, $network);
+		$platform    = '';

 		if (in_array($network, Protocol::FEDERATED) && !empty($gsid)) {
 			$gserver = self::getServerForId($gsid);

 			if (!empty($gserver['platform'])) {
-				$platform = $gserver['platform'];
+				$platform = (string) $gserver['platform'];
 			} elseif (!empty($gserver['network']) && ($gserver['network'] != Protocol::ACTIVITYPUB)) {
 				$platform = self::networkToName($gserver['network']);
 			}

-			if (!empty($platform)) {
+			if ($platform !== '') {
 				$networkname = $platform;
 			}
 		}
@ -161,7 +162,7 @@ class ContactSelector
 			$networkname = DI::l10n()->t('%s (via %s)', $networkname, self::networkToName($protocol));
 		} elseif (in_array($network, ['', $protocol]) && ($network == Protocol::DFRN)) {
 			$networkname .= ' (DFRN)';
-		} elseif (in_array($network, ['', $protocol]) && ($network == Protocol::DIASPORA) && ($platform != 'diaspora')) {
+		} elseif (in_array($network, ['', $protocol]) && ($network == Protocol::DIASPORA) && ($platform !== 'diaspora')) {
 			$networkname .= ' (Diaspora)';
 		}

--- a/src/Content/Item.php
+++ b/src/Content/Item.php
@ -180,6 +180,7 @@ class Item
 	public static function replaceTag(string &$body, int $profile_uid, string $tag, string $network = '')
 	{
 		$replaced = false;
+		$contact  = [];

 		//is it a person tag?
 		if (Tag::isType($tag, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION)) {
@ -247,6 +248,8 @@ class Item
 				}
 			}

+			$newname = '';
+
 			// Check if $contact has been successfully loaded
 			if (DBA::isResult($contact)) {
 				$profile = $contact['url'];
--- a/src/Content/OEmbed.php
+++ b/src/Content/OEmbed.php
@ -178,7 +178,7 @@ class OEmbed
 			$oembed->thumbnail_height = $data['images'][0]['height'];
 		}

-		Hook::callAll('oembed_fetch_url', $embedurl, $oembed);
+		Hook::callAll('oembed_fetch_url', $embedurl);

 		return $oembed;
 	}
--- a/src/Content/Post/Repository/PostMedia.php
+++ b/src/Content/Post/Repository/PostMedia.php
@ -119,6 +119,7 @@ class PostMedia extends BaseRepository
 		$heights  = [];
 		$selected = '';
 		$previews = [];
+		$video    = [];

 		foreach ($PostMedias as $PostMedia) {
 			foreach ($links as $link) {
--- a/src/Content/Text/NPF.php
+++ b/src/Content/Text/NPF.php
@ -543,6 +543,8 @@ class NPF
 			return $npf;
 		}

+		$block = [];
+
 		$media = Post\Media::getByURL($uri_id, $attributes['src'], [Post\Media::AUDIO, Post\Media::VIDEO]);
 		if (!empty($media)) {
 			switch ($media['type']) {
--- a/src/Content/Text/Plaintext.php
+++ b/src/Content/Text/Plaintext.php
@ -114,6 +114,8 @@ class Plaintext
 			$post['text'] = trim($item['title']);
 		}

+		$abstract = '';
+
 		// Fetch the abstract from the given target network
 		switch ($htmlmode) {
 			case BBCode::TWITTER:
@ -242,6 +244,8 @@ class Plaintext
 		$part      = '';
 		$break_pos = 0;
 		$comma_pos = 0;
+		$pos       = 0;
+		$word      = '';

 		$limit = $baselimit;

--- a/src/Content/Widget.php
+++ b/src/Content/Widget.php
@ -402,7 +402,7 @@ class Widget
 			return '';
 		}

-		$commonContacts = Contact\Relation::listCommon($localPCid, $visitorPCid, $condition, 0, 5, true);
+		$commonContacts = Contact\Relation::listCommon($localPCid, $visitorPCid, $condition, 0, 5);
 		if (!DBA::isResult($commonContacts)) {
 			return '';
 		}
@ -479,6 +479,10 @@ class Widget
 			DI::cache()->set($cachekey, $dthen, Duration::HOUR);
 		}

+		$cutoffday = '';
+		$thisday   = '';
+		$nextday   = '';
+
 		if ($dthen) {
 			// Set the start and end date to the beginning of the month
 			$cutoffday = $dthen;
@ -513,7 +517,6 @@ class Widget
 			return $o;
 		}

-
 		$cutoff_year = intval(DateTimeFormat::localNow('Y')) - $visible_years;
 		$cutoff = array_key_exists($cutoff_year, $ret);

--- a/src/Content/Widget/VCard.php
+++ b/src/Content/Widget/VCard.php
@ -34,7 +34,7 @@ class VCard
 	public static function getHTML(array $contact, bool $hide_mention = false, bool $hide_follow = false): string
 	{
 		if (!isset($contact['network']) || !isset($contact['id'])) {
-			Logger::warning('Incomplete contact', ['contact' => $contact ?? []]);
+			Logger::warning('Incomplete contact', ['contact' => $contact]);
 		}

 		$contact_url = Contact::getProfileLink($contact);
--- a/src/Core/Addon/Exception/AddonInvalidConfigFileException.php
+++ b/src/Core/Addon/Exception/AddonInvalidConfigFileException.php
@ -14,8 +14,8 @@ use Throwable;
 */
 class AddonInvalidConfigFileException extends \RuntimeException
 {
-	public function __construct($message = '', $code = 0, Throwable $previous = null)
+	public function __construct($message = '')
 	{
-		parent::__construct($message, 500, $previous);
+		parent::__construct($message, 500);
 	}
 }
--- a/src/Core/Cache/Type/DatabaseCache.php
+++ b/src/Core/Cache/Type/DatabaseCache.php
@ -47,17 +47,21 @@ class DatabaseCache extends AbstractCache implements ICanCache
 			}

 			$stmt = $this->dba->select('cache', ['k'], $where);
+		} catch (\Exception $exception) {
+			throw new CachePersistenceException(sprintf('Cannot fetch all keys with prefix %s', $prefix), $exception);
+		}

+		try {
 			$keys = [];
 			while ($key = $this->dba->fetch($stmt)) {
 				array_push($keys, $key['k']);
 			}
 		} catch (\Exception $exception) {
-			throw new CachePersistenceException(sprintf('Cannot fetch all keys with prefix %s', $prefix), $exception);
-		} finally {
 			$this->dba->close($stmt);
+			throw new CachePersistenceException(sprintf('Cannot fetch all keys with prefix %s', $prefix), $exception);
 		}

+		$this->dba->close($stmt);
 		return $keys;
 	}

--- a/src/Core/Config/Exception/ConfigFileException.php
+++ b/src/Core/Config/Exception/ConfigFileException.php
@ -11,8 +11,8 @@ use Throwable;

 class ConfigFileException extends \RuntimeException
 {
-	public function __construct($message = "", $code = 0, Throwable $previous = null)
+	public function __construct($message = "")
 	{
-		parent::__construct($message, 500, $previous);
+		parent::__construct($message, 500);
 	}
 }
--- a/src/Core/Config/Util/ConfigFileManager.php
+++ b/src/Core/Config/Util/ConfigFileManager.php
@ -245,7 +245,10 @@ class ConfigFileManager
 		$fullName = $this->baseDir . DIRECTORY_SEPARATOR . '.' . $name . '.php';

 		$config = [];
-		if (file_exists($fullName)) {
+		if (!file_exists($fullName)) {
+			return $config;
+		}
+
 		$a         = new \stdClass();
 		$a->config = [];
 		include $fullName;
@ -283,7 +286,7 @@ class ConfigFileManager
 			$config['database']['database'] = $db_data;
 			unset($db_data);
 		}
-			if (isset($config['system']['db_charset'])) {
+		if (isset($config['system']) && isset($config['system']['db_charset'])) {
 			$config['database']['charset'] = $config['system']['db_charset'];
 		}
 		if (isset($pidfile)) {
@ -298,7 +301,6 @@ class ConfigFileManager
 			$config['system']['language'] = $lang;
 			unset($lang);
 		}
-		}

 		return $config;
 	}
--- a/src/Core/Lock/Type/DatabaseLock.php
+++ b/src/Core/Lock/Type/DatabaseLock.php
@ -182,17 +182,22 @@ class DatabaseLock extends AbstractLock
 			}

 			$stmt = $this->dba->select('locks', ['name'], $where);
+		} catch (\Exception $exception) {
+			throw new LockPersistenceException(sprintf('Cannot get lock with prefix %s', $prefix), $exception);
+		}

+		try {
 			$keys = [];
 			while ($key = $this->dba->fetch($stmt)) {
 				array_push($keys, $key['name']);
 			}
 		} catch (\Exception $exception) {
-			throw new LockPersistenceException(sprintf('Cannot get lock with prefix %s', $prefix), $exception);
-		} finally {
 			$this->dba->close($stmt);
+			throw new LockPersistenceException(sprintf('Cannot get lock with prefix %s', $prefix), $exception);
 		}

+		$this->dba->close($stmt);
+
 		return $keys;
 	}
 }
--- a/src/Core/PConfig/Repository/PConfig.php
+++ b/src/Core/PConfig/Repository/PConfig.php
@ -60,7 +60,11 @@ class PConfig
 			} else {
 				$configs = $this->db->select(static::$table_name, ['cat', 'v', 'k'], ['cat' => $cat, 'uid' => $uid]);
 			}
+		} catch (\Exception $exception) {
+			throw new PConfigPersistenceException(sprintf('Cannot load config category "%s" for user %d', $cat, $uid), $exception);
+		}

+		try {
 			while ($config = $this->db->fetch($configs)) {
 				$key   = $config['k'];
 				$value = ValueConversion::toConfigValue($config['v']);
@ -71,11 +75,12 @@ class PConfig
 				}
 			}
 		} catch (\Exception $exception) {
-			throw new PConfigPersistenceException(sprintf('Cannot load config category %s for user %d', $cat, $uid), $exception);
-		} finally {
 			$this->db->close($configs);
+			throw new PConfigPersistenceException(sprintf('Cannot load config category "%s" for user %d', $cat, $uid), $exception);
 		}

+		$this->db->close($configs);
+
 		return $return;
 	}

--- a/src/Core/Session/Factory/Session.php
+++ b/src/Core/Session/Factory/Session.php
@ -13,11 +13,14 @@ use Friendica\Core\Cache\Factory\Cache;
 use Friendica\Core\Cache\Type\DatabaseCache;
 use Friendica\Core\Config\Capability\IManageConfigValues;
 use Friendica\Core\Session\Capability\IHandleSessions;
-use Friendica\Core\Session\Type;
-use Friendica\Core\Session\Handler;
+use Friendica\Core\Session\Handler\Cache as CacheHandler;
+use Friendica\Core\Session\Handler\Database as DatabaseHandler;
+use Friendica\Core\Session\Type\Memory;
+use Friendica\Core\Session\Type\Native;
 use Friendica\Database\Database;
 use Friendica\Util\Profiler;
 use Psr\Log\LoggerInterface;
+use Throwable;

 /**
 * Factory for creating a valid Session for this run
@ -49,36 +52,45 @@ class Session
 		$profiler->startRecording('session');
 		$session_handler = $config->get('system', 'session_handler', self::HANDLER_DEFAULT);

-		try {
 		if ($mode->isInstall() || $mode->isBackend()) {
-				$session = new Type\Memory();
-			} else {
+			$session = new Memory();
+			$profiler->stopRecording();
+			return $session;
+		}
+
+		try {
 			switch ($session_handler) {
 				case self::HANDLER_DATABASE:
-						$handler = new Handler\Database($dba, $logger, $server);
+					$handler = new DatabaseHandler($dba, $logger, $server);
 					break;
 				case self::HANDLER_CACHE:
 					$cache = $cacheFactory->createDistributed();

 					// In case we're using the db as cache driver, use the native db session, not the cache
 					if ($config->get('system', 'cache_driver') === DatabaseCache::NAME) {
-							$handler = new Handler\Database($dba, $logger, $server);
+						$handler = new DatabaseHandler($dba, $logger, $server);
 					} else {
-							$handler = new Handler\Cache($cache, $logger);
+						$handler = new CacheHandler($cache, $logger);
 					}
 					break;
 				default:
 					$handler = null;
 			}
-
-				$session = new Type\Native($baseURL, $handler);
-			}
-		} catch (\Throwable $e) {
+		} catch (Throwable $e) {
 			$logger->notice('Unable to create session', ['mode' => $mode, 'session_handler' => $session_handler, 'exception' => $e]);
-			$session = new Type\Memory();
-		} finally {
+			$session = new Memory();
 			$profiler->stopRecording();
 			return $session;
 		}
+
+		try {
+			$session = new Native($baseURL, $handler);
+		} catch (Throwable $e) {
+			$logger->notice('Unable to create session', ['mode' => $mode, 'session_handler' => $session_handler, 'exception' => $e]);
+			$session = new Memory();
+		}
+
+		$profiler->stopRecording();
+		return $session;
 	}
 }
--- a/src/Core/Storage/Type/ExternalResource.php
+++ b/src/Core/Storage/Type/ExternalResource.php
@ -54,16 +54,13 @@ class ExternalResource implements ICanReadFromStorage
 			$this->logger->notice('URL is invalid', ['url' => $data->url, 'error' => $exception]);
 			throw new ReferenceStorageException(sprintf('External resource failed to get %s', $reference), $exception->getCode(), $exception);
 		}
-		if (!empty($fetchResult) && $fetchResult->isSuccess()) {
-			$this->logger->debug('Got picture', ['Content-Type' => $fetchResult->getHeader('Content-Type'), 'uid' => $data->uid, 'url' => $data->url]);
-			return $fetchResult->getBodyString();
-		} else {
-			if (empty($fetchResult)) {
-				throw new ReferenceStorageException(sprintf('External resource failed to get %s', $reference));
-			} else {
+
+		if (!$fetchResult->isSuccess()) {
 			throw new ReferenceStorageException(sprintf('External resource failed to get %s', $reference), $fetchResult->getReturnCode(), new Exception($fetchResult->getBodyString()));
 		}
-		}
+
+		$this->logger->debug('Got picture', ['Content-Type' => $fetchResult->getHeader('Content-Type'), 'uid' => $data->uid, 'url' => $data->url]);
+		return $fetchResult->getBodyString();
 	}

 	/**
--- a/src/Core/System.php
+++ b/src/Core/System.php
@ -393,6 +393,8 @@ class System

 	/**
 	 * Exit the program execution.
+	 *
+	 * @return never
 	 */
 	public static function exit()
 	{
@ -506,6 +508,8 @@ class System
 	 * @throws TemporaryRedirectException
 	 *
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+	 *
+	 * @return never
 	 */
 	public static function externalRedirect($url, $code = 302)
 	{
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@ -275,7 +275,7 @@ class DBStructure
 			$is_new_table = false;
 			$sql3         = "";
 			if (!isset($database[$name])) {
-				$sql = DbaDefinitionSqlWriter::createTable($name, $structure, $verbose, $action);
+				$sql = DbaDefinitionSqlWriter::createTable($name, $structure);
 				if ($verbose) {
 					echo $sql;
 				}
--- a/src/Database/Database.php
+++ b/src/Database/Database.php
@ -534,6 +534,8 @@ class Database
 			throw new ServiceUnavailableException('The Connection is empty, although connected is set true.');
 		}

+		$retval = false;
+
 		switch ($this->driver) {
 			case self::PDO:
 				// If there are no arguments we use "query"
@ -1074,6 +1076,8 @@ class Database
 	 */
 	public function lastInsertId(): int
 	{
+		$id = 0;
+
 		switch ($this->driver) {
 			case self::PDO:
 				$id = $this->connection->lastInsertId();
@ -1681,6 +1685,8 @@ class Database
 			return false;
 		}

+		$ret = false;
+
 		switch ($this->driver) {
 			case self::PDO:
 				$ret = $stmt->closeCursor();
@ -1695,8 +1701,6 @@ class Database
 				} elseif ($stmt instanceof mysqli_result) {
 					$stmt->free();
 					$ret = true;
-				} else {
-					$ret = false;
 				}
 				break;
 		}
--- a/src/Database/PostUpdate.php
+++ b/src/Database/PostUpdate.php
@ -284,7 +284,7 @@ class PostUpdate
 		}

 		while ($item = DBA::fetch($items)) {
-			Tag::storeFromBody($item['uri-id'], $item['body'], '#!@', false);
+			Tag::storeFromBody($item['uri-id'], $item['body'], '#!@');
 			$id = $item['uri-id'];
 			++$rows;
 			if ($rows % 1000 == 0) {
@ -775,11 +775,8 @@ class PostUpdate

 		while ($photo = DBA::fetch($photos)) {
 			$img = Photo::getImageForPhoto($photo);
-			if (!empty($img)) {
 			$md5 = md5($img->asString());
-			} else {
-				$md5 = '';
-			}
+
 			DBA::update('photo', ['hash' => $md5], ['id' => $photo['id']]);
 			++$rows;
 		}
--- a/src/Database/View.php
+++ b/src/Database/View.php
@ -25,11 +25,11 @@ class View
 		foreach (['post-view', 'post-thread-view'] as $view) {
 			if (self::isView($view)) {
 				$sql = sprintf("DROP VIEW IF EXISTS `%s`", DBA::escape($view));
-				if (!empty($sql) && $verbose) {
+				if ($verbose) {
 					echo $sql . ";\n";
 				}

-				if (!empty($sql) && $action) {
+				if ($action) {
 					DBA::e($sql);
 				}
 			}
--- a/src/Factory/Api/Twitter/DirectMessage.php
+++ b/src/Factory/Api/Twitter/DirectMessage.php
@ -48,6 +48,9 @@ class DirectMessage extends BaseFactory
 			throw new HTTPException\NotFoundException('Direct message with ID ' . $mail . ' not found.');
 		}

+		$title = '';
+		$text  = '';
+
 		if (!empty($text_mode)) {
 			$title = $mail['title'];
 			if ($text_mode == 'html') {
@ -56,7 +59,6 @@ class DirectMessage extends BaseFactory
 				$text = HTML::toPlaintext(BBCode::convertForUriId($mail['uri-id'], $mail['body'], BBCode::TWITTER_API), 0);
 			}
 		} else {
-			$title = '';
 			$text  = $mail['title'] . "\n" . HTML::toPlaintext(BBCode::convertForUriId($mail['uri-id'], $mail['body'], BBCode::TWITTER_API), 0);
 		}

--- a/src/Factory/Api/Twitter/User.php
+++ b/src/Factory/Api/Twitter/User.php
@ -57,7 +57,7 @@ class User extends BaseFactory
 				['author-id' => $publicContact['id'], 'gravity' => [Item::GRAVITY_COMMENT, Item::GRAVITY_PARENT], 'private'  => [Item::PUBLIC, Item::UNLISTED]],
 				['order' => ['uri-id' => true]]);
 			if (!empty($post['uri-id'])) {
-				$status = $this->status->createFromUriId($post['uri-id'], $uid)->toArray();
+				$status = $this->status->createFromUriId($post['uri-id'], $uid);
 			}
 		}

--- a/src/Model/APContact.php
+++ b/src/Model/APContact.php
@ -178,7 +178,7 @@ class APContact

 			try {
 				$curlResult = HTTPSignature::fetchRaw($url);
-				$failed = empty($curlResult) || empty($curlResult->getBodyString()) ||
+				$failed = empty($curlResult->getBodyString()) ||
 					(!$curlResult->isSuccess() && ($curlResult->getReturnCode() != 410));

 					if (!$failed) {
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@ -2364,6 +2364,8 @@ class Contact
 			$cache_avatar = !DBA::exists('contact', ['nurl' => $contact['nurl'], 'self' => true]);
 		}

+		$fields = [];
+
 		if (in_array($contact['network'], [Protocol::FEED, Protocol::MAIL]) || $cache_avatar) {
 			if (Avatar::deleteCache($contact)) {
 				$force = true;
@ -2380,6 +2382,8 @@ class Contact
 				Logger::debug('Use default avatar', ['id' => $cid, 'uid' => $uid]);
 			}

+			$local_uid = 0;
+
 			// Use the data from the self account
 			if (empty($fields)) {
 				$local_uid = User::getIdForURL($contact['url']);
@ -2411,8 +2415,15 @@ class Contact
 				if ($update) {
 					$photos = Photo::importProfilePhoto($avatar, $uid, $cid, true);
 					if ($photos) {
-						$fields = ['avatar' => $avatar, 'photo' => $photos[0], 'thumb' => $photos[1], 'micro' => $photos[2], 'blurhash' => $photos[3], 'avatar-date' => DateTimeFormat::utcNow()];
-						$update = !empty($fields);
+						$fields = [
+							'avatar' => $avatar,
+							'photo' => $photos[0],
+							'thumb' => $photos[1],
+							'micro' => $photos[2],
+							'blurhash' => $photos[3],
+							'avatar-date' => DateTimeFormat::utcNow(),
+						];
+						$update = true;
 						Logger::debug('Created new cached avatars', ['id' => $cid, 'uid' => $uid, 'owner-uid' => $local_uid]);
 					} else {
 						$update = false;
--- a/src/Model/Event.php
+++ b/src/Model/Event.php
@ -333,7 +333,7 @@ class Event
 		$item['uri']           = $event['uri'];
 		$item['uri-id']        = ItemURI::getIdByURI($event['uri']);
 		$item['guid']          = $event['guid'];
-		$item['plink']         = $arr['plink'] ?? '';
+		$item['plink']         = '';
 		$item['post-type']     = Item::PT_EVENT;
 		$item['wall']          = $event['cid'] ? 0 : 1;
 		$item['contact-id']    = $contact['id'];
--- a/src/Model/GServer.php
+++ b/src/Model/GServer.php
@ -224,6 +224,8 @@ class GServer
 	 */
 	public static function reachable(array $contact): bool
 	{
+		$server = '';
+
 		if (!empty($contact['gsid'])) {
 			$gsid = $contact['gsid'];
 		} elseif (!empty($contact['baseurl'])) {
@ -800,6 +802,8 @@ class GServer
 		$serverdata['failed']       = false;
 		$serverdata['blocked']      = false;

+		$id = 0;
+
 		$gserver = DBA::selectFirst('gserver', ['network'], ['nurl' => Strings::normaliseLink($url)]);
 		if (!DBA::isResult($gserver)) {
 			$serverdata['created'] = DateTimeFormat::utcNow();
@ -1197,10 +1201,6 @@ class GServer
 			}
 		}

-		if (empty($server)) {
-			return [];
-		}
-
 		if (empty($server['network'])) {
 			$server['network'] = Protocol::PHANTOM;
 		}
@ -1337,10 +1337,6 @@ class GServer
 			}
 		}

-		if (empty($server)) {
-			return [];
-		}
-
 		if (empty($server['network'])) {
 			$server['network'] = Protocol::PHANTOM;
 		}
@ -1444,7 +1440,7 @@ class GServer
 			}
 		}

-		if (empty($server) || empty($server['platform'])) {
+		if (empty($server['platform'])) {
 			return [];
 		}

@ -1652,10 +1648,11 @@ class GServer
 		}

 		$data = json_decode($curlResult->getBodyString(), true);
-		if (empty($data)) {
+		if (!is_string($data)) {
 			return '';
 		}
-		return $data ?? '';
+
+		return $data;
 	}

 	private static function getZotData(string $url, array $serverdata): array
@ -2310,13 +2307,19 @@ class GServer
 			return $serverdata;
 		}

-		if (file_exists(__DIR__ . '/../../static/platforms.config.php')) {
-			require __DIR__ . '/../../static/platforms.config.php';
-		} else {
+		if (!file_exists(__DIR__ . '/../../static/platforms.config.php')) {
 			throw new HTTPException\InternalServerErrorException('Invalid platform file');
 		}

-		$platforms = array_merge($ap_platforms, $dfrn_platforms, $zap_platforms, $platforms);
+		/** @var array $grouped_platforms */
+		$grouped_platforms = require __DIR__ . '/../../static/platforms.config.php';
+
+		$platforms = array_merge(
+			$grouped_platforms['ap_platforms'],
+			$grouped_platforms['dfrn_platforms'],
+			$grouped_platforms['zap_platforms'],
+			$grouped_platforms['platforms'],
+		);

 		$doc = new DOMDocument();
 		@$doc->loadHTML($curlResult->getBodyString());
@ -2367,11 +2370,11 @@ class GServer
 					$platform = $platform_parts[0];
 					$serverdata['version'] = $platform_parts[1];
 				}
-				if (in_array($platform, array_values($dfrn_platforms))) {
+				if (in_array($platform, array_values($grouped_platforms['dfrn_platforms']))) {
 					$serverdata['network'] = Protocol::DFRN;
-				} elseif (in_array($platform, array_values($ap_platforms))) {
+				} elseif (in_array($platform, array_values($grouped_platforms['ap_platforms']))) {
 					$serverdata['network'] = Protocol::ACTIVITYPUB;
-				} elseif (in_array($platform, array_values($zap_platforms))) {
+				} elseif (in_array($platform, array_values($grouped_platforms['zap_platforms']))) {
 					$serverdata['network'] = Protocol::ZOT;
 				}
 				if (in_array($platform, array_values($platforms))) {
@ -2414,9 +2417,9 @@ class GServer
 					$assigned = true;
 				}

-				if (in_array($attr['content'], array_keys($ap_platforms))) {
+				if (in_array($attr['content'], array_keys($grouped_platforms['ap_platforms']))) {
 					$serverdata['network'] = Protocol::ACTIVITYPUB;
-				} elseif (in_array($attr['content'], array_values($zap_platforms))) {
+				} elseif (in_array($attr['content'], array_values($grouped_platforms['zap_platforms']))) {
 					$serverdata['network'] = Protocol::ZOT;
 				}
 			}
@ -2492,7 +2495,7 @@ class GServer
 	 */
 	public static function discover()
 	{
-		if (!DI::config('system', 'discover_servers')) {
+		if (!DI::config()->get('system', 'discover_servers')) {
 			return;
 		}

--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@ -193,6 +193,7 @@ class Item
 			$fields['vid'] = Verb::getID($fields['verb']);
 		}

+		$previous = [];
 		if (!empty($fields['edited'])) {
 			$previous = Post::selectFirst(['edited'], $condition);
 		}
@ -856,6 +857,8 @@ class Item

 		$priority = Worker::PRIORITY_HIGH;

+		$copy_permissions = false;
+
 		// If it is a posting where users should get notifications, then define it as wall posting
 		if ($notify) {
 			$item = self::prepareOriginPost($item);
@ -3205,7 +3208,7 @@ class Item
 		} elseif ($remote_user) {
 			// Authenticated visitor - fetch the matching permissionsets
 			$permissionSets = DI::permissionSet()->selectByContactId($remote_user, $owner_id);
-			if (!empty($permissionSets)) {
+			if (count($permissionSets) > 0) {
 				$condition = [
 					"(`private` != ? OR (`private` = ? AND `wall`
 					AND `psid` IN (" . implode(', ', array_fill(0, count($permissionSets), '?')) . ")))",
@ -3234,17 +3237,12 @@ class Item
 			$table = DBA::quoteIdentifier($table) . '.';
 		}

-		/*
-		 * Construct permissions
-		 *
-		 * default permissions - anonymous user
-		 */
-		$sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
-
 		// Profile owner - everything is visible
 		if ($local_user && ($local_user == $owner_id)) {
-			$sql = '';
-		} elseif ($remote_user) {
+			return '';
+		}
+
+		if ($remote_user) {
 			/*
 			 * Authenticated visitor. Unless pre-verified,
 			 * check that the contact belongs to this $owner_id
@ -3254,16 +3252,21 @@ class Item
 			 */
 			$permissionSets = DI::permissionSet()->selectByContactId($remote_user, $owner_id);

-			if (!empty($permissionSets)) {
-				$sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $permissionSets->column('id')) . "))";
-			} else {
 			$sql_set = '';
+
+			if (count($permissionSets) > 0) {
+				$sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $permissionSets->column('id')) . "))";
 			}

-			$sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
+			return sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
 		}

-		return $sql;
+		/*
+		 * Construct permissions
+		 *
+		 * default permissions - anonymous user
+		 */
+		return sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
 	}

 	/**
@ -3387,6 +3390,7 @@ class Item
 		$shared_uri_id      = 0;
 		$shared_links       = [];
 		$quote_shared_links = [];
+		$shared_item        = [];

 		$shared = DI::contentItem()->getSharedPost($item, $fields);
 		if (!empty($shared['post'])) {
@ -3430,6 +3434,8 @@ class Item
 			}
 		}

+		$sharedSplitAttachments = [];
+
 		if (!empty($shared_item['uri-id'])) {
 			$shared_uri_id = $shared_item['uri-id'];
 			$shared_links[] = strtolower($shared_item['plink']);
@ -3503,7 +3509,7 @@ class Item
 			$s = self::addGallery($s, $sharedSplitAttachments['visual']);
 			$s = self::addVisualAttachments($sharedSplitAttachments['visual'], $shared_item, $s, true);
 			$s = self::addLinkAttachment($shared_uri_id ?: $item['uri-id'], $sharedSplitAttachments, $body, $s, true, $quote_shared_links);
-			$s = self::addNonVisualAttachments($sharedSplitAttachments['additional'], $item, $s, true);
+			$s = self::addNonVisualAttachments($sharedSplitAttachments['additional'], $item, $s);
 			$body = BBCode::removeSharedData($body);
 		}

@ -3516,7 +3522,7 @@ class Item
 		$s = self::addGallery($s, $itemSplitAttachments['visual']);
 		$s = self::addVisualAttachments($itemSplitAttachments['visual'], $item, $s, false);
 		$s = self::addLinkAttachment($item['uri-id'], $itemSplitAttachments, $body, $s, false, $shared_links);
-		$s = self::addNonVisualAttachments($itemSplitAttachments['additional'], $item, $s, false);
+		$s = self::addNonVisualAttachments($itemSplitAttachments['additional'], $item, $s);
 		$s = self::addQuestions($item, $s);

 		// Map.
--- a/src/Model/Post/Engagement.php
+++ b/src/Model/Post/Engagement.php
@ -318,6 +318,8 @@ class Engagement
 		$result = Post::selectPosts(['author-addr', 'author-nick', 'author-contact-type'],
 			['thr-parent-id' => $uri_id, 'gravity' => Item::GRAVITY_ACTIVITY, 'verb' => Activity::ANNOUNCE, 'author-contact-type' => [Contact::TYPE_RELAY, Contact::TYPE_COMMUNITY]]);
 		while ($reshare = Post::fetch($result)) {
+			$prefix = '';
+
 			switch ($reshare['author-contact-type']) {
 				case Contact::TYPE_RELAY:
 					$prefix = ' application_';
--- a/src/Model/Post/Link.php
+++ b/src/Model/Post/Link.php
@ -113,9 +113,6 @@ class Link

 		try {
 			$curlResult = HTTPSignature::fetchRaw($url, 0, [HttpClientOptions::TIMEOUT => $timeout, HttpClientOptions::ACCEPT_CONTENT => $accept]);
-			if (empty($curlResult) || !$curlResult->isSuccess()) {
-				return [];
-			}
 		} catch (\Exception $exception) {
 			Logger::notice('Error fetching url', ['url' => $url, 'exception' => $exception]);
 			return [];
--- a/src/Model/Post/Media.php
+++ b/src/Model/Post/Media.php
@ -699,7 +699,7 @@ class Media
 		if (preg_match_all("/\[url\](https?:.*?)\[\/url\]/ism", $body, $matches)) {
 			foreach ($matches[1] as $url) {
 				Logger::info('Got page url (link without description)', ['uri-id' => $uriid, 'url' => $url]);
-				$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
+				$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false);
 				if ($result && !in_array($network, [Protocol::ACTIVITYPUB, Protocol::DIASPORA])) {
 					self::revertHTMLType($uriid, $url, $fullbody);
 					Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
@ -715,7 +715,7 @@ class Media
 		if (preg_match_all("/\[url\=(https?:.*?)\].*?\[\/url\]/ism", $body, $matches)) {
 			foreach ($matches[1] as $url) {
 				Logger::info('Got page url (link with description)', ['uri-id' => $uriid, 'url' => $url]);
-				$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false, $network);
+				$result = self::insert(['uri-id' => $uriid, 'type' => self::UNKNOWN, 'url' => $url], false);
 				if ($result && !in_array($network, [Protocol::ACTIVITYPUB, Protocol::DIASPORA])) {
 					self::revertHTMLType($uriid, $url, $fullbody);
 					Logger::debug('Revert HTML type', ['uri-id' => $uriid, 'url' => $url]);
--- a/src/Module/Admin/Themes/Embed.php
+++ b/src/Module/Admin/Themes/Embed.php
@ -49,7 +49,7 @@ class Embed extends BaseAdmin
 			require_once "view/theme/$theme/config.php";
 			if (function_exists('theme_admin_post')) {
 				self::checkFormSecurityTokenRedirectOnError('/admin/themes/' . $theme . '/embed?mode=minimal', 'admin_theme_settings');
-				theme_admin_post($this->appHelper);
+				theme_admin_post();
 			}
 		}

--- a/src/Module/Api/Mastodon/Markers.php
+++ b/src/Module/Api/Mastodon/Markers.php
@ -31,7 +31,7 @@ class Markers extends BaseApi
 			}
 		}

-		if (empty($timeline) || empty($last_read_id) || empty($application['id'])) {
+		if ($timeline === '' || $last_read_id === '' || empty($application['id'])) {
 			$this->logAndJsonError(422, $this->errorFactory->UnprocessableEntity());
 		}

--- a/src/Module/Api/Twitter/Friendships/Show.php
+++ b/src/Module/Api/Twitter/Friendships/Show.php
@ -28,12 +28,12 @@ class Show extends ContactEndpoint
 		$target_cid = BaseApi::getContactIDForSearchterm($this->getRequestValue($request, 'target_screen_name', ''), '', $this->getRequestValue($request, 'target_id', 0), $uid);

 		$source = Contact::getById($source_cid);
-		if (empty($source)) {
+		if ($source === false) {
 			throw new NotFoundException('Source not found');
 		}

 		$target = Contact::getById($target_cid);
-		if (empty($source)) {
+		if ($target === false) {
 			throw new NotFoundException('Target not found');
 		}

--- a/src/Module/BaseApi.php
+++ b/src/Module/BaseApi.php
@ -511,7 +511,7 @@ class BaseApi extends BaseModule
 	/**
 	 * @param int   $errorno
 	 * @param Error $error
-	 * @return void
+	 * @return never
 	 * @throws HTTPException\InternalServerErrorException
 	 */
 	protected function logAndJsonError(int $errorno, Error $error)
--- a/src/Module/BaseNotifications.php
+++ b/src/Module/BaseNotifications.php
@ -131,7 +131,7 @@ abstract class BaseNotifications extends BaseModule

 		$notif_tpl = Renderer::getMarkupTemplate('notifications/notifications.tpl');
 		return Renderer::replaceMacros($notif_tpl, [
-			'$header'        => $header ?? $this->t('Notifications'),
+			'$header'        => $header ?: $this->t('Notifications'),
 			'$tabs'          => $tabs,
 			'$notifications' => $notifications,
 			'$noContent'     => $noContent,
--- a/src/Module/Calendar/Event/API.php
+++ b/src/Module/Calendar/Event/API.php
@ -140,9 +140,9 @@ class API extends BaseModule
 		$share     = intval($request['share'] ?? 0);
 		$isPreview = intval($request['preview'] ?? 0);

-		$start = DateTimeFormat::convert($strStartDateTime ?? DBA::NULL_DATETIME, 'UTC', $this->timezone);
+		$start = DateTimeFormat::convert($strStartDateTime, 'UTC', $this->timezone);
 		if (!$noFinish) {
-			$finish = DateTimeFormat::convert($strFinishDateTime ?? DBA::NULL_DATETIME, 'UTC', $this->timezone);
+			$finish = DateTimeFormat::convert($strFinishDateTime, 'UTC', $this->timezone);
 		} else {
 			$finish = DBA::NULL_DATETIME;
 		}
--- a/src/Module/Circle.php
+++ b/src/Module/Circle.php
@ -70,6 +70,8 @@ class Circle extends BaseModule
 				throw new \Exception(DI::l10n()->t('Permission denied.'), 403);
 			}

+			$message = '';
+
 			if (isset($this->parameters['command'])) {
 				$circle_id = $this->parameters['circle'];
 				$contact_id = $this->parameters['contact'];
@ -170,6 +172,8 @@ class Circle extends BaseModule
 		}

 		$nocircle    = false;
+		$members     = [];
+		$preselected = [];

 		// @TODO: Replace with parameter from router
 		if ((DI::args()->getArgc() == 2) && (DI::args()->getArgv()[1] === 'none') ||
@ -181,9 +185,6 @@ class Circle extends BaseModule
 				'name' => DI::l10n()->t('Contacts not in any circle'),
 			];

-			$members = [];
-			$preselected = [];
-
 			$context = $context + [
 				'$title' => $circle['name'],
 				'$gname' => ['circle_name', DI::l10n()->t('Circle Name: '), $circle['name'], ''],
--- a/src/Module/Contact/Conversations.php
+++ b/src/Module/Contact/Conversations.php
@ -7,18 +7,19 @@

 namespace Friendica\Module\Contact;

-use Friendica\App;
+use Friendica\App\Arguments;
+use Friendica\App\BaseURL;
+use Friendica\App\Page;
 use Friendica\BaseModule;
 use Friendica\Contact\LocalRelationship\Repository\LocalRelationship;
 use Friendica\Content\Conversation;
 use Friendica\Content\Nav;
-use Friendica\Content\Widget;
+use Friendica\Content\Widget\VCard;
 use Friendica\Core\ACL;
 use Friendica\Core\L10n;
 use Friendica\Core\Protocol;
 use Friendica\Core\Session\Capability\IHandleUserSessions;
 use Friendica\Core\Theme;
-use Friendica\Model;
 use Friendica\Model\Contact as ModelContact;
 use Friendica\Module\Contact;
 use Friendica\Module\Response;
@ -33,7 +34,7 @@ use Psr\Log\LoggerInterface;
 class Conversations extends BaseModule
 {
 	/**
-	 * @var App\Page
+	 * @var Page
 	 */
 	private $page;
 	/**
@ -49,7 +50,7 @@ class Conversations extends BaseModule
 	 */
 	private $userSession;

-	public function __construct(L10n $l10n, LocalRelationship $localRelationship, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, App\Page $page, Conversation $conversation, IHandleUserSessions $userSession, $server, array $parameters = [])
+	public function __construct(L10n $l10n, LocalRelationship $localRelationship, BaseURL $baseUrl, Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, Page $page, Conversation $conversation, IHandleUserSessions $userSession, $server, array $parameters = [])
 	{
 		parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);

@ -67,12 +68,12 @@ class Conversations extends BaseModule

 		// Backward compatibility: Ensure to use the public contact when the user contact is provided
 		// Remove by version 2022.03
-		$pcid = Model\Contact::getPublicContactId(intval($this->parameters['id']), $this->userSession->getLocalUserId());
+		$pcid = ModelContact::getPublicContactId(intval($this->parameters['id']), $this->userSession->getLocalUserId());
 		if (!$pcid) {
 			throw new NotFoundException($this->t('Contact not found.'));
 		}

-		$contact = Model\Contact::getAccountById($pcid);
+		$contact = ModelContact::getAccountById($pcid);
 		if (empty($contact)) {
 			throw new NotFoundException($this->t('Contact not found.'));
 		}
@ -83,7 +84,7 @@ class Conversations extends BaseModule
 		}

 		$localRelationship = $this->localRelationship->getForUserContact($this->userSession->getLocalUserId(), $contact['id']);
-		if ($localRelationship->rel === Model\Contact::SELF) {
+		if ($localRelationship->rel === ModelContact::SELF) {
 			$this->baseUrl->redirect('profile/' . $contact['nick']);
 		}

@ -93,10 +94,12 @@ class Conversations extends BaseModule
 		$this->page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput.css'));
 		$this->page->registerStylesheet(Theme::getPathForFile('js/friendica-tagsinput/friendica-tagsinput-typeahead.css'));

-		$this->page['aside'] .= Widget\VCard::getHTML($contact, true);
+		$this->page['aside'] .= VCard::getHTML($contact, true);

 		Nav::setSelected('contact');

+		$output = '';
+
 		if (!$contact['ap-posting-restricted']) {
 			$options = [
 				'lockstate' => ACL::getLockstateForUserId($this->userSession->getLocalUserId()) ? 'lock' : 'unlock',
@ -104,12 +107,12 @@ class Conversations extends BaseModule
 				'bang' => '',
 				'content' => ($contact['contact-type'] == ModelContact::TYPE_COMMUNITY ? '!' : '@') . ($contact['addr'] ?: $contact['url']),
 			];
-			$o = $this->conversation->statusEditor($options);
+			$output = $this->conversation->statusEditor($options);
 		}

-		$o .= Contact::getTabsHTML($contact, Contact::TAB_CONVERSATIONS);
-		$o .= Model\Contact::getThreadsFromId($contact['id'], $this->userSession->getLocalUserId(), 0, 0, $request['last_created'] ?? '');
+		$output .= Contact::getTabsHTML($contact, Contact::TAB_CONVERSATIONS);
+		$output .= ModelContact::getThreadsFromId($contact['id'], $this->userSession->getLocalUserId(), 0, 0, $request['last_created'] ?? '');

-		return $o;
+		return $output;
 	}
 }
--- a/src/Module/Conversation/Timeline.php
+++ b/src/Module/Conversation/Timeline.php
@ -7,7 +7,8 @@

 namespace Friendica\Module\Conversation;

-use Friendica\App;
+use Friendica\App\Arguments;
+use Friendica\App\BaseURL;
 use Friendica\App\Mode;
 use Friendica\BaseModule;
 use Friendica\Content\Conversation\Collection\Timelines;
@ -31,6 +32,8 @@ use Friendica\Model\Post;
 use Friendica\Model\Post\Engagement;
 use Friendica\Model\Post\SearchIndex;
 use Friendica\Module\Response;
+use Friendica\Network\HTTPException\BadRequestException;
+use Friendica\Network\HTTPException\ForbiddenException;
 use Friendica\Protocol\Activity;
 use Friendica\Util\DateTimeFormat;
 use Friendica\Util\Profiler;
@ -67,7 +70,7 @@ class Timeline extends BaseModule
 	/** @var string */
 	protected $network;

-	/** @var App\Mode $mode */
+	/** @var Mode $mode */
 	protected $mode;
 	/** @var IHandleUserSessions */
 	protected $session;
@ -82,7 +85,7 @@ class Timeline extends BaseModule
 	/** @var UserDefinedChannel */
 	protected $channelRepository;

-	public function __construct(UserDefinedChannel $channel, Mode $mode, IHandleUserSessions $session, Database $database, IManagePersonalConfigValues $pConfig, IManageConfigValues $config, ICanCache $cache, L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server = [], array $parameters = [])
+	public function __construct(UserDefinedChannel $channel, Mode $mode, IHandleUserSessions $session, Database $database, IManagePersonalConfigValues $pConfig, IManageConfigValues $config, ICanCache $cache, L10n $l10n, BaseURL $baseUrl, Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server = [], array $parameters = [])
 	{
 		parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);

@ -98,8 +101,8 @@ class Timeline extends BaseModule
 	/**
 	 * Computes module parameters from the request and local configuration
 	 *
-	 * @throws HTTPException\BadRequestException
-	 * @throws HTTPException\ForbiddenException
+	 * @throws BadRequestException
+	 * @throws ForbiddenException
 	 */
 	protected function parseRequest(array $request)
 	{
@ -308,6 +311,8 @@ class Timeline extends BaseModule
 	{
 		$table = 'post-engagement';

+		$condition = [];
+
 		if ($this->selectedTab == ChannelEntity::WHATSHOT) {
 			if (!is_null($this->accountType)) {
 				$condition = ["(`comments` > ? OR `activities` > ?) AND `contact-type` = ?", $this->getMedianComments($uid, 4), $this->getMedianActivities($uid, 4), $this->accountType];
@ -684,6 +689,7 @@ class Timeline extends BaseModule
 	protected function getCommunityItems()
 	{
 		$items = $this->selectItems();
+		$key   = '';

 		if ($this->selectedTab == Community::LOCAL) {
 			$maxpostperauthor = (int)$this->config->get('system', 'max_author_posts_community_page');
@ -692,9 +698,15 @@ class Timeline extends BaseModule
 			$maxpostperauthor = (int)$this->config->get('system', 'max_server_posts_community_page');
 			$key = 'author-gsid';
 		} else {
-			$maxpostperauthor = 0;
+			$this->setItemsSeenByCondition([
+				'unseen' => true,
+				'uid' => $this->session->getLocalUserId(),
+				'parent-uri-id' => array_column($items, 'uri-id')
+			]);
+
+			return $items;
 		}
-		if ($maxpostperauthor != 0) {
+
 		$count          = 1;
 		$author_posts   = [];
 		$selected_items = [];
@ -733,9 +745,6 @@ class Timeline extends BaseModule
 				$items = $this->selectItems();
 			}
 		}
-		} else {
-			$selected_items = $items;
-		}

 		$condition = ['unseen' => true, 'uid' => $this->session->getLocalUserId(), 'parent-uri-id' => array_column($selected_items, 'uri-id')];
 		$this->setItemsSeenByCondition($condition);
--- a/src/Module/HTTPException/PageNotFound.php
+++ b/src/Module/HTTPException/PageNotFound.php
@ -37,26 +37,13 @@ class PageNotFound extends BaseModule

 	public function run(ModuleHTTPException $httpException, array $request = []): ResponseInterface
 	{
-		/* The URL provided does not resolve to a valid module.
-		 *
-		 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
-		 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
-		 * we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
-		 * this will often succeed and eventually do the right thing.
-		 *
-		 * Otherwise we are going to emit a 404 not found.
-		 */
+		// The URL provided does not resolve to a valid module.
 		$queryString = $this->server['QUERY_STRING'];
 		// Stupid browser tried to pre-fetch our JavaScript img template. Don't log the event or return anything - just quietly exit.
 		if (!empty($queryString) && preg_match('/{[0-9]}/', $queryString) !== 0) {
 			System::exit();
 		}

-		if (!empty($queryString) && ($queryString === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
-			$this->logger->info('index.php: dreamhost_error_hack invoked.', ['Original URI' => $this->server['REQUEST_URI']]);
-			$this->baseUrl->redirect($this->server['REQUEST_URI']);
-		}
-
 		$this->logger->debug('index.php: page not found.', [
 			'request_uri' => $this->server['REQUEST_URI'],
 			'address'     => $this->remoteAddress,
--- a/src/Module/Item/Display.php
+++ b/src/Module/Item/Display.php
@ -166,12 +166,13 @@ class Display extends BaseModule
 	 */
 	protected function displaySidebar(array $item)
 	{
+		$author = [];
 		$shared = $this->contentItem->getSharedPost($item, ['author-link']);
-		if (!empty($shared) && empty($shared['comment'])) {
+		if (array_key_exists('comment', $shared) && strval($shared['comment']) === '') {
 			$author = Contact::getByURLForUser($shared['post']['author-link'], $this->session->getLocalUserId());
 		}

-		if (empty($contact)) {
+		if ($author === []) {
 			$author = Contact::getById($item['author-id']);
 		}

--- a/src/Module/Magic.php
+++ b/src/Module/Magic.php
@ -65,31 +65,26 @@ class Magic extends BaseModule

 		$this->logger->debug('Invoked', ['request' => $request]);

-		$addr     = $request['addr'] ?? '';
-		$bdest    = $request['bdest'] ?? '';
-		$dest     = $request['dest'] ?? '';
-		$rev      = intval($request['rev'] ?? 0);
+		$addr     = (string) $request['addr'] ?? '';
+		$bdest    = (string) $request['bdest'] ?? '';
+		$dest     = (string) $request['dest'] ?? '';
 		$owa      = intval($request['owa'] ?? 0);
-		$delegate = $request['delegate'] ?? '';

 		// bdest is preferred as it is hex-encoded and can survive url rewrite and argument parsing
-		if (!empty($bdest)) {
+		if ($bdest !== '') {
 			$dest = hex2bin($bdest);
 			$this->logger->debug('bdest detected', ['dest' => $dest]);
 		}

 		$target = $dest ?: $addr;

-		if ($addr ?: $dest) {
 		$contact = Contact::getByURL($addr ?: $dest);
-		}
-
-		if (empty($contact)) {
-			if (!$owa) {
+		if ($contact === [] && $owa === 0) {
 			$this->logger->info('No contact record found, no oWA, redirecting to destination.', ['request' => $request, 'server' => $_SERVER, 'dest' => $dest]);
 			$this->appHelper->redirect($dest);
 		}
-		} else {
+
+		if ($contact !== []) {
 			// Redirect if the contact is already authenticated on this site.
 			if ($this->appHelper->getContactId() && strpos($contact['nurl'], Strings::normaliseLink($this->baseUrl)) !== false) {
 				$this->logger->info('Contact is already authenticated, redirecting to destination.', ['dest' => $dest]);
@ -99,7 +94,7 @@ class Magic extends BaseModule
 			$this->logger->debug('Contact found', ['url' => $contact['url']]);
 		}

-		if (!$this->userSession->getLocalUserId() || !$owa) {
+		if (!$this->userSession->getLocalUserId() || $owa === 0) {
 			$this->logger->notice('Not logged in or not OWA, redirecting to destination.', ['uid' => $this->userSession->getLocalUserId(), 'owa' => $owa, 'dest' => $dest]);
 			$this->appHelper->redirect($dest);
 		}
--- a/src/Module/Moderation/Users/Active.php
+++ b/src/Module/Moderation/Users/Active.php
@ -48,15 +48,18 @@ class Active extends BaseUsers
 	{
 		parent::content();

-		$action = $this->parameters['action'] ?? '';
-		$uid    = $this->parameters['uid']    ?? 0;
+		$action = (string) $this->parameters['action'] ?? '';
+		$uid    = (int) $this->parameters['uid'] ?? 0;

-		if ($uid) {
-			$user = User::getById($uid, ['username', 'blocked']);
-			if (!$user) {
+		if ($uid === 0) {
 			$this->systemMessages->addNotice($this->t('User not found'));
 			$this->baseUrl->redirect('moderation/users');
 		}
+
+		$user = User::getById($uid, ['username', 'blocked']);
+		if (!is_array($user)) {
+			$this->systemMessages->addNotice($this->t('User not found'));
+			$this->baseUrl->redirect('moderation/users');
 		}

 		switch ($action) {
--- a/src/Module/Moderation/Users/Blocked.php
+++ b/src/Module/Moderation/Users/Blocked.php
@ -48,15 +48,18 @@ class Blocked extends BaseUsers
 	{
 		parent::content();

-		$action = $this->parameters['action'] ?? '';
-		$uid    = $this->parameters['uid']    ?? 0;
+		$action = (string) $this->parameters['action'] ?? '';
+		$uid    = (int) $this->parameters['uid'] ?? 0;

-		if ($uid) {
-			$user = User::getById($uid, ['username', 'blocked']);
-			if (!$user) {
+		if ($uid === 0) {
 			$this->systemMessages->addNotice($this->t('User not found'));
 			$this->baseUrl->redirect('moderation/users');
 		}
+
+		$user = User::getById($uid, ['username', 'blocked']);
+		if (!is_array($user)) {
+			$this->systemMessages->addNotice($this->t('User not found'));
+			$this->baseUrl->redirect('moderation/users');
 		}

 		switch ($action) {
--- a/src/Module/Moderation/Users/Index.php
+++ b/src/Module/Moderation/Users/Index.php
@ -55,15 +55,18 @@ class Index extends BaseUsers
 	{
 		parent::content();

-		$action = $this->parameters['action'] ?? '';
-		$uid    = $this->parameters['uid']    ?? 0;
+		$action = (string) $this->parameters['action'] ?? '';
+		$uid    = (int) $this->parameters['uid'] ?? 0;

-		if ($uid) {
-			$user = User::getById($uid, ['username', 'blocked']);
-			if (!$user) {
+		if ($uid === 0) {
 			$this->systemMessages->addNotice($this->t('User not found'));
 			$this->baseUrl->redirect('moderation/users');
 		}
+
+		$user = User::getById($uid, ['username', 'blocked']);
+		if (!is_array($user)) {
+			$this->systemMessages->addNotice($this->t('User not found'));
+			$this->baseUrl->redirect('moderation/users');
 		}

 		switch ($action) {
--- a/src/Module/OAuth/Token.php
+++ b/src/Module/OAuth/Token.php
@ -66,12 +66,30 @@ class Token extends BaseApi
 			$this->logAndJsonError(401, $this->errorFactory->Unauthorized('invalid_client', $this->t('Invalid data or unknown client')));
 		}

-		if ($request['grant_type'] == 'client_credentials') {
+		$grant_type = (string) $request['grant_type'];
+
+		if (!in_array($grant_type, ['client_credentials', 'authorization_code'])) {
+			Logger::warning('Unsupported or missing grant type', ['request' => $_REQUEST]);
+			$this->logAndJsonError(422, $this->errorFactory->UnprocessableEntity($this->t('Unsupported or missing grant type')));
+		}
+
+		if ($grant_type === 'client_credentials') {
 			// the "client_credentials" are used as a token for the application itself.
 			// see https://aaronparecki.com/oauth-2-simplified/#client-credentials
 			$token = OAuth::createTokenForUser($application, 0, '');
-			$me = null;
-		} elseif ($request['grant_type'] == 'authorization_code') {
+
+			$object = new \Friendica\Object\Api\Mastodon\Token(
+				$token['access_token'],
+				'Bearer',
+				$application['scopes'],
+				$token['created_at'],
+				null
+			);
+
+			$this->jsonExit($object->toArray());
+		}
+
+		// now check for $grant_type === 'authorization_code'
 		// For security reasons only allow freshly created tokens
 		$redirect_uri = strtok($request['redirect_uri'],'?');
 		$condition = [
@ -84,14 +102,16 @@ class Token extends BaseApi
 			$this->logger->notice('Token not found or outdated', $condition);
 			$this->logAndJsonError(401, $this->errorFactory->Unauthorized());
 		}
-			$owner = User::getOwnerDataById($token['uid']);
-			$me = $owner['url'];
-		} else {
-			Logger::warning('Unsupported or missing grant type', ['request' => $_REQUEST]);
-			$this->logAndJsonError(422, $this->errorFactory->UnprocessableEntity($this->t('Unsupported or missing grant type')));
-		}

-		$object = new \Friendica\Object\Api\Mastodon\Token($token['access_token'], 'Bearer', $application['scopes'], $token['created_at'], $me);
+		$owner = User::getOwnerDataById($token['uid']);
+
+		$object = new \Friendica\Object\Api\Mastodon\Token(
+			$token['access_token'],
+			'Bearer',
+			$application['scopes'],
+			$token['created_at'],
+			$owner['url']
+		);

 		$this->jsonExit($object->toArray());
 	}
--- a/src/Module/Photo.php
+++ b/src/Module/Photo.php
@ -143,6 +143,8 @@ class Photo extends BaseApi
 		$cacheable = ($photo['allow_cid'] . $photo['allow_gid'] . $photo['deny_cid'] . $photo['deny_gid'] === '') && (isset($photo['cacheable']) ? $photo['cacheable'] : true);

 		$stamp    = microtime(true);
+		$imgdata  = '';
+		$mimetype = false;

 		if (empty($request['blur']) || empty($photo['blurhash'])) {
 			$imgdata  = MPhoto::getImageDataForPhoto($photo);
@ -150,7 +152,9 @@ class Photo extends BaseApi
 		}
 		if (empty($imgdata) && empty($photo['blurhash'])) {
 			throw new HTTPException\NotFoundException();
-		} elseif (empty($imgdata) && !empty($photo['blurhash'])) {
+		}
+
+		if (empty($imgdata) && !empty($photo['blurhash'])) {
 			$image = new Image('', image_type_to_mime_type(IMAGETYPE_WEBP));
 			$image->getFromBlurHash($photo['blurhash'], $photo['width'], $photo['height']);
 			$imgdata  = $image->asString();
@ -376,6 +380,9 @@ class Photo extends BaseApi
 						Logger::debug('Expected Content-Type', ['mime' => $mimetext, 'url' => $url]);
 					}
 				}
+
+				$url = '';
+
 				if (empty($mimetext) && !empty($contact['blurhash'])) {
 					$image = new Image('', image_type_to_mime_type(IMAGETYPE_WEBP));
 					$image->getFromBlurHash($contact['blurhash'], $customsize, $customsize);
--- a/src/Module/Post/Tag/Remove.php
+++ b/src/Module/Post/Tag/Remove.php
@ -77,11 +77,12 @@ class Remove extends \Friendica\BaseModule

 		$tag_text = Tag::getCSVByURIId($item['uri-id']);

-		$tags = explode(',', $tag_text);
-		if (empty($tags)) {
+		if ($tag_text === '') {
 			$this->baseUrl->redirect($returnUrl);
 		}
 		
+		$tags = explode(',', $tag_text);
+
 		$tag_checkboxes = array_map(function ($tag_text) {
 			return ['tag[' . bin2hex($tag_text) . ']', BBCode::toPlaintext($tag_text)];
 		}, $tags);
--- a/src/Module/Profile/Photos.php
+++ b/src/Module/Profile/Photos.php
@ -128,6 +128,10 @@ class Photos extends \Friendica\Module\BaseProfile
 		}

 		$ret      = ['src' => '', 'filename' => '', 'filesize' => 0, 'type' => ''];
+		$src      = null;
+		$filename = '';
+		$filesize = 0;
+		$type     = '';

 		Hook::callAll('photo_post_file', $ret);

@ -167,7 +171,11 @@ class Photos extends \Friendica\Module\BaseProfile
 					$this->systemMessages->addNotice($this->t('Server can\'t accept new file upload at this time, please contact your administrator'));
 					break;
 			}
+
+			if ($src !== null) {
 				@unlink($src);
+			}
+
 			$foo = 0;
 			Hook::callAll('photo_post_end', $foo);
 			return;
--- a/src/Module/Security/TwoFactor/Trust.php
+++ b/src/Module/Security/TwoFactor/Trust.php
@ -96,7 +96,7 @@ class Trust extends BaseModule
 				// exception wanted!
 				throw $e;
 			} catch (\Exception $e) {
-				$this->logger->warning('Unexpected error during authentication.', ['user' => $this->session->getLocalUserId(), 'exception' => $exception]);
+				$this->logger->warning('Unexpected error during authentication.', ['user' => $this->session->getLocalUserId(), 'exception' => $e]);
 			}
 		}
 	}
--- a/src/Module/Settings/Profile/Photo/Crop.php
+++ b/src/Module/Settings/Profile/Photo/Crop.php
@ -46,9 +46,6 @@ class Crop extends BaseSettings
 		$base_image = Photo::selectFirst([], ['resource-id' => $resource_id, 'uid' => DI::userSession()->getLocalUserId(), 'scale' => $scale]);
 		if (DBA::isResult($base_image)) {
 			$Image = Photo::getImageForPhoto($base_image);
-			if (empty($Image)) {
-				throw new HTTPException\InternalServerErrorException();
-			}

 			if ($Image->isValid()) {
 				// If setting for the default profile, unset the profile photo flag from any other photos I own
@ -185,7 +182,7 @@ class Crop extends BaseSettings
 		}

 		$Image = Photo::getImageForPhoto($photos[0]);
-		if (empty($Image)) {
+		if (!$Image->isValid()) {
 			throw new HTTPException\InternalServerErrorException();
 		}

--- a/src/Module/Settings/RemoveMe.php
+++ b/src/Module/Settings/RemoveMe.php
@ -92,8 +92,6 @@ class RemoveMe extends BaseSettings
 			$this->baseUrl->redirect();
 		} catch (\RuntimeException $e) {
 			$this->systemMessages->addNotice($e->getMessage());
-		} finally {
-			return;
 		}
 	}

--- a/src/Module/Xrd.php
+++ b/src/Module/Xrd.php
@ -64,6 +64,8 @@ class Xrd extends BaseModule

 		header('Vary: Accept', false);

+		$alias = '';
+
 		if ($name == User::getActorName()) {
 			$owner = User::getSystemAccount();
 			if (empty($owner)) {
@ -108,7 +110,7 @@ class Xrd extends BaseModule
 			$parts[] = current(explode(';', $part));
 		}

-		if (empty($parts)) {
+		if ($parts === []) {
 			return $default;
 		} elseif (in_array('application/jrd+json', $parts) && !in_array('application/xrd+xml', $parts)) {
 			return Response::TYPE_JSON;
--- a/src/Navigation/Notifications/ValueObject/FormattedNotify.php
+++ b/src/Navigation/Notifications/ValueObject/FormattedNotify.php
@ -41,13 +41,13 @@ class FormattedNotify extends BaseDataTransferObject

 	public function __construct(string $label, string $link, string $image, string $url, string $text, string $when, string $ago, bool $seen)
 	{
-		$this->label = $label ?? '';
-		$this->link  = $link  ?? '';
-		$this->image = $image ?? '';
-		$this->url   = $url   ?? '';
-		$this->text  = $text  ?? '';
-		$this->when  = $when  ?? '';
-		$this->ago   = $ago   ?? '';
-		$this->seen  = $seen  ?? false;
+		$this->label = $label;
+		$this->link  = $link;
+		$this->image = $image;
+		$this->url   = $url;
+		$this->text  = $text;
+		$this->when  = $when;
+		$this->ago   = $ago;
+		$this->seen  = $seen;
 	}
 }
--- a/src/Network/Probe.php
+++ b/src/Network/Probe.php
@ -220,14 +220,16 @@ class Probe
 			Logger::notice('Got exception', ['code' => $th->getCode(), 'message' => $th->getMessage()]);
 			return [];
 		}
+
 		$ssl_connection_error = ($curlResult->getErrorNumber() == CURLE_COULDNT_CONNECT) || ($curlResult->getReturnCode() == 0);
+
+		$host_url = $host;
+
 		if ($curlResult->isSuccess()) {
 			$xml = $curlResult->getBodyString();
 			$xrd = XML::parseString($xml, true);
 			if (!empty($url)) {
 				$host_url = 'https://' . $host;
-			} else {
-				$host_url = $host;
 			}
 		} elseif ($curlResult->isTimeout()) {
 			Logger::info('Probing timeout', ['url' => $ssl_url]);
@ -550,6 +552,7 @@ class Probe
 	public static function getWebfingerArray(string $uri): array
 	{
 		$parts = parse_url($uri);
+		$lrdd  = [];

 		if (!empty($parts['scheme']) && !empty($parts['host'])) {
 			$host = $parts['host'];
@ -562,8 +565,11 @@ class Probe
 			$nick = '';
 			$addr = '';

-			$path_parts = explode('/', trim($parts['path'] ?? '', '/'));
-			if (!empty($path_parts)) {
+			$path_parts = [];
+
+			if (array_key_exists('path', $parts) && trim(strval($parts['path']), '/') !== '') {
+				$path_parts = explode('/', trim($parts['path'], '/'));
+
 				$nick = ltrim(end($path_parts), '@');
 				$addr = $nick . '@' . $host;
 			}
@ -574,7 +580,7 @@ class Probe
 			}

 			if (empty($webfinger) && empty($lrdd)) {
-				while (empty($lrdd) && empty($webfinger) && (sizeof($path_parts) > 1)) {
+				while (empty($lrdd) && empty($webfinger) && (count($path_parts) > 1)) {
 					$host    .= '/' . array_shift($path_parts);
 					$baseurl = $parts['scheme'] . '://' . $host;

@ -668,8 +674,10 @@ class Probe
 			return null;
 		}

+		$detected = '';
+
 		// First try the address because this is the primary purpose of webfinger
-		if (!empty($addr)) {
+		if ($addr !== '') {
 			$detected = $addr;
 			$path = str_replace('{uri}', urlencode('acct:' . $addr), $template);
 			$webfinger = self::webfinger($path, $type);
@ -823,13 +831,15 @@ class Probe
 	 */
 	private static function zot(array $webfinger, array $data): array
 	{
+		$zot_url = '';
+
 		foreach ($webfinger['links'] as $link) {
 			if (($link['rel'] == 'http://purl.org/zot/protocol/6.0') && !empty($link['href'])) {
 				$zot_url = $link['href'];
 			}
 		}

-		if (empty($zot_url)) {
+		if ($zot_url === '') {
 			return $data;
 		}

@ -1429,7 +1439,7 @@ class Probe
 			&& !empty($data['guid'])
 			&& !empty($data['baseurl'])
 			&& !empty($data['pubkey'])
-			&& !empty($hcard_url)
+			&& $hcard_url !== ''
 		) {
 			$data['network'] = Protocol::DIASPORA;
 			$data['manually-approve'] = false;
@ -1776,7 +1786,7 @@ class Probe
 		$password = '';
 		openssl_private_decrypt(hex2bin($mailacct['pass']), $password, $user['prvkey']);
 		$mbox = Email::connect($mailbox, $mailacct['user'], $password);
-		if (!$mbox) {
+		if ($mbox === false) {
 			return [];
 		}

@ -1828,7 +1838,7 @@ class Probe
 			}
 		}

-		if (!empty($mbox)) {
+		if ($mbox !== false) {
 			imap_close($mbox);
 		}

--- a/src/Object/Api/Twitter/User.php
+++ b/src/Object/Api/Twitter/User.php
@ -62,7 +62,7 @@ class User extends BaseDataTransferObject
 	protected $default_profile;
 	/** @var bool */
 	protected $default_profile_image;
-	/** @var Status */
+	/** @var array */
 	protected $status;
 	/** @var array */
 	protected $withheld_in_countries;
@ -117,12 +117,11 @@ class User extends BaseDataTransferObject
 	 * @param array $publicContact         Full contact table record with uid = 0
 	 * @param array $apcontact             Optional full apcontact table record
 	 * @param array $userContact           Optional full contact table record with uid != 0
-	 * @param null  $status
 	 * @param bool  $include_user_entities Whether to add the entities property
 	 *
 	 * @throws InternalServerErrorException
 	 */
-	public function __construct(array $publicContact, array $apcontact = [], array $userContact = [], $status = null, bool $include_user_entities = true)
+	public function __construct(array $publicContact, array $apcontact = [], array $userContact = [], ?Status $status = null, bool $include_user_entities = true)
 	{
 		$uid = $userContact['uid'] ?? 0;

@ -156,10 +155,10 @@ class User extends BaseDataTransferObject
 		$this->default_profile         = false;
 		$this->default_profile_image   = false;

-		if (!empty($status)) {
-			$this->status = $status;
-		} else {
+		if ($status === null) {
 			unset($this->status);
+		} else {
+			$this->status = $status->toArray();
 		}

 		//  Unused optional fields
--- a/src/Object/Image.php
+++ b/src/Object/Image.php
@ -771,7 +771,7 @@ class Image
 	public function getBlurHash(): string
 	{
 		$image = New Image($this->asString(), $this->getType(), $this->filename, false);
-		if (empty($image) || !$this->isValid()) {
+		if (!$this->isValid()) {
 			return '';
 		}

@ -827,6 +827,7 @@ class Image
 	{
 		$scaled = Images::getScalingDimensions($width, $height, 90);
 		$pixels = Blurhash::decode($blurhash, $scaled['width'], $scaled['height']);
+		$draw   = null;

 		if ($this->isImagick()) {
 			$this->image = new Imagick();
@ -839,7 +840,7 @@ class Image
 		for ($y = 0; $y < $scaled['height']; ++$y) {
 			for ($x = 0; $x < $scaled['width']; ++$x) {
 				[$r, $g, $b] = $pixels[$y][$x];
-				if ($this->isImagick()) {
+				if ($draw !== null) {
 					$draw->setFillColor("rgb($r, $g, $b)");
 					$draw->point($x, $y);
 				} else {
@ -848,7 +849,7 @@ class Image
 			}
 		}

-		if ($this->isImagick()) {
+		if ($draw !== null) {
 			$this->image->drawImage($draw);
 			$this->width  = $this->image->getImageWidth();
 			$this->height = $this->image->getImageHeight();
--- a/src/Protocol/ActivityPub/ClientToServer.php
+++ b/src/Protocol/ActivityPub/ClientToServer.php
@ -323,7 +323,7 @@ class ClientToServer
 			$requester_id = Contact::getIdForURL($requester, $owner['uid']);
 			if (!empty($requester_id)) {
 				$permissionSets = DI::permissionSet()->selectByContactId($requester_id, $owner['uid']);
-				if (!empty($permissionSets)) {
+				if (count($permissionSets) > 0) {
 					$condition = ['psid' => array_merge($permissionSets->column('id'),
 						[DI::permissionSet()->selectPublicForUser($owner['uid'])])];
 				}
--- a/src/Protocol/ActivityPub/Delivery.php
+++ b/src/Protocol/ActivityPub/Delivery.php
@ -42,6 +42,8 @@ class Delivery
 				continue;
 			}

+			$result = [];
+
 			if (!$serverfail) {
 				$result = self::deliverToInbox($post['command'], 0, $inbox, $owner, $post['receivers'], $post['uri-id']);

@ -121,11 +123,12 @@ class Delivery
 					$serverfail = $response->isTimeout();
 				} catch (\Throwable $th) {
 					Logger::notice('Got exception', ['code' => $th->getCode(), 'message' => $th->getMessage()]);
+					$response   = null;
 					$success    = false;
 					$serverfail = true;
 				}
 				$runtime = microtime(true) - $timestamp;
-				if (!$success) {
+				if ($success === false) {
 					// 5xx errors are problems on the server. We don't need to continue delivery then.
 					if (!$serverfail && ($response->getReturnCode() >= 500) && ($response->getReturnCode() <= 599)) {
 						$serverfail = true;
--- a/src/Protocol/ActivityPub/Processor.php
+++ b/src/Protocol/ActivityPub/Processor.php
@ -1361,6 +1361,7 @@ class Processor
 			}

 			$hash = substr($tag['name'], 0, 1);
+			$type = 0;

 			if ($tag['type'] == 'Mention') {
 				if (in_array($hash, [Tag::TAG_CHARACTER[Tag::MENTION],
@ -1616,7 +1617,7 @@ class Processor
 			return [];
 		}

-		if (!self::isValidObject($object, $url)) {
+		if (!self::isValidObject($object)) {
 			return [];
 		}

@ -1657,10 +1658,6 @@ class Processor
 			return '';
 		}

-		if (empty($curlResult)) {
-			return '';
-		}
-
 		$body = $curlResult->getBodyString();
 		if (!$curlResult->isSuccess() || empty($body)) {
 			if (in_array($curlResult->getReturnCode(), [403, 404, 406, 410])) {
@ -1680,7 +1677,7 @@ class Processor
 			return null;
 		}

-		if (!self::isValidObject($object, $url)) {
+		if (!self::isValidObject($object)) {
 			return null;
 		}

@ -1829,6 +1826,8 @@ class Processor
 		Logger::notice('Fetch replies - start', ['replies' => $url, 'callstack' => $child['callstack'], 'system' => $callstack]);
 		$fetched = 0;
 		foreach ($replies as $reply) {
+			$id = '';
+
 			if (is_array($reply)) {
 				$ldobject = JsonLD::compact($reply);
 				$id = JsonLD::fetchElement($ldobject, '@id');
@ -2120,9 +2119,8 @@ class Processor
 			self::transmitPendingEvents($cid, $owner['uid']);
 		}

-		if (empty($contact)) {
 		Contact::update(['hub-verify' => $activity['id'], 'protocol' => Protocol::ACTIVITYPUB], ['id' => $cid]);
-		}
+
 		Logger::notice('Follow user ' . $uid . ' from contact ' . $cid . ' with id ' . $activity['id']);
 		Queue::remove($activity);
 	}
@ -2334,9 +2332,10 @@ class Processor
 	 */
 	public static function acceptFollowUser(array $activity)
 	{
+		$check_id = false;
+
 		if (!empty($activity['object_actor'])) {
 			$uid      = User::getIdForURL($activity['object_actor']);
-			$check_id = false;
 		} elseif (!empty($activity['receiver']) && (count($activity['receiver']) == 1)) {
 			$uid      = array_shift($activity['receiver']);
 			$check_id = true;
--- a/src/Protocol/ActivityPub/Queue.php
+++ b/src/Protocol/ActivityPub/Queue.php
@ -414,7 +414,7 @@ class Queue
 	{
 		$entries = DBA::select('inbox-entry', ['id'], ["NOT `trust` AND `wid` IS NULL"], ['order' => ['id' => true]]);
 		while ($entry = DBA::fetch($entries)) {
-			$data = self::reprepareActivityById($entry['id'], false);
+			$data = self::reprepareActivityById($entry['id']);
 			if ($data['trust']) {
 				DBA::update('inbox-entry', ['trust' => true], ['id' => $entry['id']]);
 			}
--- a/src/Protocol/ActivityPub/Receiver.php
+++ b/src/Protocol/ActivityPub/Receiver.php
@ -307,6 +307,7 @@ class Receiver
 		$id          = JsonLD::fetchElement($activity, '@id');
 		$type        = JsonLD::fetchElement($activity, '@type');
 		$object_id   = JsonLD::fetchElement($activity, 'as:object', '@id');
+		$object_type = '';

 		if (!empty($object_id) && in_array($type, ['as:Create', 'as:Update'])) {
 			$fetch_id = $object_id;
@ -618,7 +619,7 @@ class Receiver
 		}

 		$actor = JsonLD::fetchElement($activity, 'as:actor', '@id');
-		if (empty($actor)) {
+		if ($actor === null || $actor === '') {
 			Logger::info('Empty actor', ['activity' => $activity]);
 			return true;
 		}
@ -630,7 +631,7 @@ class Receiver
 			$id            = JsonLD::fetchElement($activity, '@id');
 			$object_id     = JsonLD::fetchElement($activity, 'as:object', '@id');

-			if (!empty($published) && !empty($object_id) && in_array($type, ['as:Create', 'as:Update']) && in_array($object_type, self::CONTENT_TYPES)
+			if (!empty($published) && $object_id !== null && in_array($type, ['as:Create', 'as:Update']) && in_array($object_type, self::CONTENT_TYPES)
 				&& ($push || ($completion != self::COMPLETION_MANUAL)) && DI::contentItem()->isTooOld($published) && !Post::exists(['uri' => $object_id])) {
 				Logger::debug('Activity is too old. It will not be processed', ['push' => $push, 'completion' => $completion, 'type' =>  $type,  'object-type' => $object_type, 'published' => $published, 'id' => $id, 'object-id' => $object_id]);
 				return true;
@ -641,7 +642,7 @@ class Receiver

 		// Test the provided signatures against the actor and "attributedTo"
 		if ($trust_source) {
-			if (!empty($attributed_to) && !empty($actor)) {
+			if ($attributed_to !== false && $attributed_to !== '') {
 				$trust_source = (in_array($actor, $signer) && in_array($attributed_to, $signer));
 			} else {
 				$trust_source = in_array($actor, $signer);
@ -1185,6 +1186,8 @@ class Receiver
 		}

 		$parent_followers = '';
+		$parent_profile   = [];
+
 		$parent = Post::selectFirstPost(['parent-author-link'], ['uri' => $reply]);
 		if (!empty($parent['parent-author-link'])) {
 			$parent_profile = APContact::getByURL($parent['parent-author-link']);
--- a/src/Protocol/ActivityPub/Transmitter.php
+++ b/src/Protocol/ActivityPub/Transmitter.php
@ -573,11 +573,12 @@ class Transmitter
 		$exclusive  = false;
 		$mention    = false;
 		$audience   = [];
+		$owner      = false;

 		// Check if we should always deliver our stuff via BCC
 		if (!empty($item['uid'])) {
 			$owner = User::getOwnerDataById($item['uid']);
-			if (!empty($owner)) {
+			if (is_array($owner)) {
 				$always_bcc = $owner['hide-friends'];
 				$is_group   = ($owner['account-type'] == User::ACCOUNT_TYPE_COMMUNITY);

@ -1399,7 +1400,7 @@ class Transmitter
 		$type = self::getTypeOfItem($item);

 		if (!$object_mode) {
-			$data = ['@context' => $context ?? ActivityPub::CONTEXT];
+			$data = ['@context' => ActivityPub::CONTEXT];

 			if ($item['deleted'] && ($item['gravity'] == Item::GRAVITY_ACTIVITY)) {
 				$type = 'Undo';
@ -1750,6 +1751,7 @@ class Transmitter

 		$title   = $item['title'];
 		$summary = $item['content-warning'] ?: BBCode::toPlaintext(BBCode::getAbstract($item['body'], Protocol::ACTIVITYPUB));
+		$type    = '';

 		if ($item['event-type'] == 'event') {
 			$type = 'Event';
--- a/src/Protocol/Delivery.php
+++ b/src/Protocol/Delivery.php
@ -12,7 +12,6 @@ use Friendica\Contact\FriendSuggest\Exception\FriendSuggestNotFoundException;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
 use Friendica\Core\Worker;
-use Friendica\Database\Database;
 use Friendica\Database\DBA;
 use Friendica\DI;
 use Friendica\Model\Contact;
@ -48,6 +47,8 @@ class Delivery
 		$top_level      = false;
 		$followup       = false;
 		$public_message = false;
+		$parent         = false;
+		$thr_parent     = false;

 		$items = [];
 		if ($cmd == self::MAIL) {
--- a/src/Protocol/Diaspora.php
+++ b/src/Protocol/Diaspora.php
@ -623,22 +623,21 @@ class Diaspora
 	 */
 	private static function validPosting(array $msg)
 	{
-		$data = XML::parseString($msg['message']);
+		$element = XML::parseString($msg['message']);

-		if (!is_object($data)) {
+		if (!is_object($element)) {
 			Logger::info('No valid XML', ['message' => $msg['message']]);
 			return false;
 		}

+		$oldXML = false;
+
 		// Is this the new or the old version?
-		if ($data->getName() == 'XML') {
+		if ($element->getName() === 'XML') {
 			$oldXML = true;
-			foreach ($data->post->children() as $child) {
+			foreach ($element->post->children() as $child) {
 				$element = $child;
 			}
-		} else {
-			$oldXML = false;
-			$element = $data;
 		}

 		$type = $element->getName();
@ -1460,7 +1459,7 @@ class Diaspora
 		 */

 		foreach ($matches as $match) {
-			if (empty($match)) {
+			if ($match === '') {
 				continue;
 			}

@ -3030,7 +3029,7 @@ class Diaspora
 			// The "addr" field should always be filled.
 			// If this isn't the case, it will raise a notice some lines later.
 			// And in the log we will see where it came from, and we can handle it there.
-			Logger::notice('Empty addr', ['contact' => $contact ?? []]);
+			Logger::notice('Empty addr', ['contact' => $contact]);
 		}

 		$envelope = self::buildMessage($msg, $owner, $contact, $owner['uprvkey'], $pubkey ?? '', $public_batch);
@ -3655,6 +3654,8 @@ class Diaspora
 	 */
 	public static function sendFollowup(array $item, array $owner, array $contact, bool $public_batch = false): int
 	{
+		$type = '';
+
 		if (in_array($item['verb'], [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE])) {
 			$message = self::constructAttend($item, $owner);
 			$type = 'event_participation';
--- a/src/Protocol/Email.php
+++ b/src/Protocol/Email.php
@ -25,7 +25,7 @@ class Email
 	 * @param string $mailbox  The mailbox name
 	 * @param string $username The username
 	 * @param string $password The password
-	 * @return Connection|resource|bool
+	 * @return Connection|false
 	 * @throws \Exception
 	 */
 	public static function connect(string $mailbox, string $username, string $password)
--- a/src/Protocol/Feed.php
+++ b/src/Protocol/Feed.php
@ -736,7 +736,7 @@ class Feed
 				$publish_at = date(DateTimeFormat::MYSQL, $publish_time);

 				if (Post\Delayed::add($posting['item']['uri'], $posting['item'], $posting['notify'], Post\Delayed::PREPARED, $publish_at, $posting['taglist'], $posting['attachments'])) {
-					DI::pConfig()->set($item['uid'], 'system', 'last_publish', $publish_time);
+					DI::pConfig()->set($posting['item']['uid'], 'system', 'last_publish', $publish_time);
 				}
 			}
 		}
@ -1407,7 +1407,7 @@ class Feed

 				$contact = Contact::getByURL($item['author-link']) ?: $owner;
 				$contact['nickname'] = $contact['nickname'] ?? $contact['nick'];
-				$author = self::addAuthor($doc, $contact, false);
+				$author = self::addAuthor($doc, $contact);
 				$entry->appendChild($author);
 			}
 		} else {
--- a/src/Util/EMailer/NotifyMailBuilder.php
+++ b/src/Util/EMailer/NotifyMailBuilder.php
@ -109,9 +109,9 @@ class NotifyMailBuilder extends MailBuilder
 	public function withPhoto(string $image, string $link, string $name)
 	{
 		$this->photo = [
-			'image' => $image ?? '',
-			'link'  => $link ?? '',
-			'name'  => $name ?? '',
+			'image' => $image,
+			'link'  => $link,
+			'name'  => $name,
 		];

 		return $this;
--- a/src/Util/HTTPSignature.php
+++ b/src/Util/HTTPSignature.php
@ -480,10 +480,6 @@ class HTTPSignature
 			return [];
 		}

-		if (empty($curlResult)) {
-			return [];
-		}
-
 		if (!$curlResult->isSuccess() || empty($curlResult->getBodyString())) {
 			Logger::debug('Fetching was unsuccessful', ['url' => $request, 'return-code' => $curlResult->getReturnCode(), 'error-number' => $curlResult->getErrorNumber(), 'error' => $curlResult->getError()]);
 			return [];
--- a/src/Util/Images.php
+++ b/src/Util/Images.php
@ -308,13 +308,13 @@ class Images

 		$data = DI::cache()->get($cacheKey);

-		if (empty($data) || !is_array($data)) {
+		if (!is_array($data)) {
 			$data = self::getInfoFromURL($url, $ocr);

 			DI::cache()->set($cacheKey, $data);
 		}

-		return $data ?? [];
+		return $data;
 	}

 	/**
--- a/src/Util/JsonLD.php
+++ b/src/Util/JsonLD.php
@ -286,7 +286,7 @@ class JsonLD
 	 * @param $type
 	 * @param $type_value
 	 *
-	 * @return string fetched element
+	 * @return string|null fetched element
 	 */
 	public static function fetchElement($array, $element, $key = '@id', $type = null, $type_value = null)
 	{
--- a/src/Util/ParseUrl.php
+++ b/src/Util/ParseUrl.php
@ -1087,7 +1087,7 @@ class ParseUrl
 		$content = JsonLD::fetchElement($jsonld, 'logo', 'url', '@type', 'ImageObject');
 		if (!empty($content) && is_string($content)) {
 			$jsonldinfo['publisher_img'] = trim($content);
-		} elseif (!empty($content) && is_array($content)) {
+		} elseif (is_array($content) && array_key_exists(0, $content)) {
 			$jsonldinfo['publisher_img'] = trim($content[0]);
 		}

--- a/src/Worker/OnePoll.php
+++ b/src/Worker/OnePoll.php
@ -220,7 +220,7 @@ class OnePoll

 		Logger::info('Mail is enabled');

-		$mbox = null;
+		$mbox = false;
 		$user = DBA::selectFirst('user', ['prvkey'], ['uid' => $importer_uid]);

 		$condition = ["`server` != ? AND `user` != ? AND `port` != ? AND `uid` = ?", '', '', 0, $importer_uid];
@ -232,17 +232,18 @@ class OnePoll
 			$mbox = Email::connect($mailbox, $mailconf['user'], $password);
 			unset($password);
 			Logger::notice('Connect', ['user' => $mailconf['user']]);
-			if ($mbox) {
-				$fields = ['last_check' => $updated];
-				DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
-				Logger::notice('Connected', ['user' => $mailconf['user']]);
-			} else {
+
+			if ($mbox === false) {
 				Logger::notice('Connection error', ['user' => $mailconf['user'], 'error' => imap_errors()]);
 				return false;
 			}
+
+			$fields = ['last_check' => $updated];
+			DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
+			Logger::notice('Connected', ['user' => $mailconf['user']]);
 		}

-		if (empty($mbox)) {
+		if ($mbox === false) {
 			return false;
 		}

--- a/static/platforms.config.php
+++ b/static/platforms.config.php
@ -129,3 +129,10 @@ $zap_platforms = [
 	'hubzilla' => 'hubzilla',
 	'osada' => 'osada',
 ];
+
+return [
+	'ap_platforms'   => $ap_platforms,
+	'dfrn_platforms' => $dfrn_platforms,
+	'zap_platforms'  => $zap_platforms,
+	'platforms'      => $platforms,
+];
--- a/tests/src/Content/Text/PlaintextTest.php
+++ b/tests/src/Content/Text/PlaintextTest.php
@ -5,7 +5,7 @@
 //
 // SPDX-License-Identifier: AGPL-3.0-or-later

-namespace Friendica\Test\src\Content;
+namespace Friendica\Test\src\Content\Text;

 use Friendica\Content\Text\BBCode;
 use Friendica\Content\Text\Plaintext;
@ -32,6 +32,7 @@ class PlaintextTest extends FixtureTest
 					'Ich ignoriere auch Anfragen, wenn sie von Accounts kommen, die ggf. tausenden von anderen Accounts folgen, da ich davon ausgehe, (5/6)',
 					'dass da niemand ernsthaft so vielen Accounts folgen kann. (6/6)'
 				],
+			],
 			'test-2' => [
 				'data'     => 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.',
 				'expected' => [
@ -42,7 +43,6 @@ class PlaintextTest extends FixtureTest
 					'sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. (5/6)',
 					'Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. (6/6)'
 				],
-				]
 			],
 		];
 	}
--- a/view/theme/duepuntozero/config.php
+++ b/view/theme/duepuntozero/config.php
@ -42,7 +42,7 @@ function theme_admin(AppHelper $appHelper)
 	return clean_form($appHelper, $colorset, $user);
 }

-function theme_admin_post(AppHelper $appHelper)
+function theme_admin_post()
 {
 	if (isset($_POST['duepuntozero-settings-submit'])) {
 		DI::config()->set('duepuntozero', 'colorset', $_POST['duepuntozero_colorset']);
--- a/view/theme/frio/config.php
+++ b/view/theme/frio/config.php
@ -92,7 +92,7 @@ function theme_admin_post()
 	}
 }

-function theme_content(): string
+function theme_content(AppHelper $appHelper): string
 {
 	if (!DI::userSession()->getLocalUserId()) {
 		return '';
@ -115,7 +115,7 @@ function theme_content(): string
 	return frio_form($arr);
 }

-function theme_admin(): string
+function theme_admin(AppHelper $appHelper): string
 {
 	if (!DI::userSession()->getLocalUserId()) {
 		return '';
--- a/view/theme/quattro/config.php
+++ b/view/theme/quattro/config.php
@ -46,7 +46,7 @@ function theme_admin(AppHelper $appHelper) {
 	return quattro_form($appHelper,$align, $color, $tfs, $pfs);
 }

-function theme_admin_post(AppHelper $appHelper) {
+function theme_admin_post() {
 	if (isset($_POST['quattro-settings-submit'])){
 		DI::config()->set('quattro', 'align', $_POST['quattro_align']);
 		DI::config()->set('quattro', 'color', $_POST['quattro_color']);
--- a/view/theme/vier/config.php
+++ b/view/theme/vier/config.php
@ -91,7 +91,7 @@ function theme_admin(AppHelper $appHelper) {
 	return $o;
 }

-function theme_admin_post(AppHelper $appHelper) {
+function theme_admin_post() {
 	if (isset($_POST['vier-settings-submit'])){
 		DI::config()->set('vier', 'style', $_POST['vier_style']);
 		DI::config()->set('vier', 'show_pages', $_POST['vier_show_pages']);