diff --git a/src/Core/Worker/Cron.php b/src/Core/Worker/Cron.php
index b07c472750..da9e16d42f 100644
--- a/src/Core/Worker/Cron.php
+++ b/src/Core/Worker/Cron.php
@@ -68,7 +68,6 @@ class Cron
 	 */
 	public static function killStaleWorkers()
 	{
-		$stamp = (float)microtime(true);
 		$entries = DBA::select(
 			'workerqueue',
 			['id', 'pid', 'executed', 'priority', 'command', 'parameter'],
@@ -78,7 +77,6 @@ class Cron
 
 		while ($entry = DBA::fetch($entries)) {
 			if (!posix_kill($entry["pid"], 0)) {
-				$stamp = (float)microtime(true);
 				DBA::update(
 					'workerqueue',
 					['executed' => DBA::NULL_DATETIME, 'pid' => 0],
@@ -89,7 +87,7 @@ class Cron
 
 				// Define the maximum durations
 				$max_duration_defaults = [PRIORITY_CRITICAL => 720, PRIORITY_HIGH => 10, PRIORITY_MEDIUM => 60, PRIORITY_LOW => 180, PRIORITY_NEGLIGIBLE => 720];
-				$max_duration = $max_duration_defaults[$entry['priority']];
+				$max_duration          = $max_duration_defaults[$entry['priority']];
 
 				$argv = json_decode($entry['parameter'], true);
 				if (!empty($entry['command'])) {
@@ -119,7 +117,6 @@ class Cron
 					} elseif ($entry['priority'] != PRIORITY_CRITICAL) {
 						$new_priority = PRIORITY_NEGLIGIBLE;
 					}
-					$stamp = (float)microtime(true);
 					DBA::update(
 						'workerqueue',
 						['executed' => DBA::NULL_DATETIME, 'created' => DateTimeFormat::utcNow(), 'priority' => $new_priority, 'pid' => 0],
@@ -154,11 +151,11 @@ class Cron
 				DI::lock()->release(Worker::LOCK_PROCESS);
 			}
 		}
-	}	
+	}
 
 	/**
 	 * Directly deliver AP messages or requeue them.
-	 * 
+	 *
 	 * This function is placed here as a safeguard. Even when the worker queue is completely blocked, messages will be delivered.
 	 */
 	private static function deliverPosts()
diff --git a/src/Core/Worker/Daemon.php b/src/Core/Worker/Daemon.php
index afc6cda4ec..02c37d3b0d 100644
--- a/src/Core/Worker/Daemon.php
+++ b/src/Core/Worker/Daemon.php
@@ -70,7 +70,7 @@ class Daemon
 			return false;
 		}
 
-		$pid = intval(file_get_contents($pidfile));
+		$pid     = intval(file_get_contents($pidfile));
 		$running = posix_kill($pid, 0);
 
 		self::$daemon_mode = $running;
@@ -129,9 +129,7 @@ class Daemon
 	private static function spawn()
 	{
 		Logger::notice('Starting new daemon process');
-		$command = 'bin/daemon.php';
-		$a = DI::app();
-		DI::system()->run($command, ['start']);
+		DI::system()->run('bin/daemon.php', ['start']);
 		Logger::notice('New daemon process started');
 	}
 }
diff --git a/src/Core/Worker/IPC.php b/src/Core/Worker/IPC.php
index a10cf1cd0c..0da63b8b88 100644
--- a/src/Core/Worker/IPC.php
+++ b/src/Core/Worker/IPC.php
@@ -62,7 +62,6 @@ class IPC
 	 */
 	public static function JobsExists(int $key = 0)
 	{
-		$stamp = (float)microtime(true);
 		$row = DBA::selectFirst('worker-ipc', ['jobs'], ['key' => $key]);
 
 		// When we don't have a row, no job is running
diff --git a/src/Protocol/ActivityPub/Delivery.php b/src/Protocol/ActivityPub/Delivery.php
index 29fe21dd06..2a2a63fee1 100644
--- a/src/Protocol/ActivityPub/Delivery.php
+++ b/src/Protocol/ActivityPub/Delivery.php
@@ -32,7 +32,7 @@ use Friendica\Worker\Delivery as WorkerDelivery;
 
 class Delivery
 {
-	public static function deliver(string $inbox):array
+	public static function deliver(string $inbox): array
 	{
 		$uri_ids    = [];
 		$posts      = Post\Delivery::selectForInbox($inbox);