Fix 5 PHPStan errors

src/Database/Database.php

@@ -474,7 +474,7 @@ class Database
 	 *
 	 * @param string $sql SQL statement
 	 *
-	 * @return bool|object statement object or result object
+	 * @return bool|mysqli_result|mysqli_stmt|object|PDOStatement statement object or result object
 	 * @throws \Exception
 	 */
 	public function p(string $sql)

src/Navigation/Notifications/Collection/Notifications.php

@@ -8,36 +8,50 @@
 namespace Friendica\Navigation\Notifications\Collection;
 
 use Friendica\BaseCollection;
-use Friendica\Navigation\Notifications\Entity;
+use Friendica\Navigation\Notifications\Entity\Notification as NotificationEntity;
 
 class Notifications extends BaseCollection
 {
-	/**
-	 * @return Entity\Notification
-	 */
-	public function current(): Entity\Notification
+	public function current(): NotificationEntity
 	{
 		return parent::current();
 	}
 
 	public function setSeen(): Notifications
 	{
-		return $this->map(function (Entity\Notification $Notification) {
-			$Notification->setSeen();
-		});
+		$class = get_class($this);
+
+		return new $class(
+			array_map(
+				function (NotificationEntity $notification) {
+					$notification->setSeen();
+				},
+				$this->getArrayCopy()
+			),
+			$this->getTotalCount(),
+		);
 	}
 
 	public function setDismissed(): Notifications
 	{
-		return $this->map(function (Entity\Notification $Notification) {
-			$Notification->setDismissed();
-		});
+		$class = get_class($this);
+
+		return new $class(
+			array_map(
+				function (NotificationEntity $notification) {
+					$notification->setDismissed();
+				},
+				$this->getArrayCopy(),
+			),
+			$this->getTotalCount(),
+		);
+
 	}
 
 	public function countUnseen(): int
 	{
-		return array_reduce($this->getArrayCopy(), function (int $carry, Entity\Notification $Notification) {
-			return $carry + ($Notification->seen ? 0 : 1);
+		return array_reduce($this->getArrayCopy(), function (int $carry, NotificationEntity $notification) {
+			return $carry + ($notification->seen ? 0 : 1);
 		}, 0);
 	}
 }

src/Navigation/Notifications/Collection/Notifies.php

@@ -8,22 +8,24 @@
 namespace Friendica\Navigation\Notifications\Collection;
 
 use Friendica\BaseCollection;
-use Friendica\Navigation\Notifications\Entity;
+use Friendica\Navigation\Notifications\Entity\Notify as NotifyEntity;
 
 class Notifies extends BaseCollection
 {
-	/**
-	 * @return Entity\Notify
-	 */
-	public function current(): Entity\Notify
+	public function current(): NotifyEntity
 	{
 		return parent::current();
 	}
 
 	public function setSeen(): Notifies
 	{
-		return $this->map(function (Entity\Notify $Notify) {
-			$Notify->setSeen();
-		});
+		$class = get_class($this);
+
+		return new $class(array_map(
+			function (NotifyEntity $notify) {
+				$notify->setSeen();
+			},
+			$this->getArrayCopy()), $this->getTotalCount(),
+		);
 	}
 }

src/Navigation/Notifications/Repository/Notification.php

@@ -162,12 +162,17 @@ class Notification extends BaseRepository
 		LIMIT 50
 		", ...$values);
 
-		$Entities = new NotificationsCollection();
-		foreach ($rows as $fields) {
-			$Entities[] = $this->factory->createFromTableRow($fields);
+		$entities = new NotificationsCollection();
+
+		if (!is_iterable($rows)) {
+			return $entities;
 		}
 
-		return $Entities;
+		foreach ($rows as $fields) {
+			$entities[] = $this->factory->createFromTableRow($fields);
+		}
+
+		return $entities;
 	}
 
 	public function selectAllForUser(int $uid): NotificationsCollection