diff --git a/src/Content/BoundariesPager.php b/src/Content/BoundariesPager.php
index dbfa4ca73b..fe95040519 100644
--- a/src/Content/BoundariesPager.php
+++ b/src/Content/BoundariesPager.php
@@ -130,7 +130,7 @@ class BoundariesPager extends Pager
 		return Renderer::replaceMacros($tpl, ['pager' => $data]);
 	}
 
-	public function renderFull(int $itemCount)
+	public function renderFull(int $itemCount): string
 	{
 		throw new \BadMethodCallException();
 	}
diff --git a/src/Content/Pager.php b/src/Content/Pager.php
index 4e8a760a17..5109fd1de3 100644
--- a/src/Content/Pager.php
+++ b/src/Content/Pager.php
@@ -199,13 +199,13 @@ class Pager
 	 *
 	 * $html = $pager->renderFull();
 	 *
-	 * @param integer $itemCount The total number of items including those note displayed on the page
+	 * @param int $itemCount The total number of items including those note displayed on the page
 	 * @return string HTML string of the pager
 	 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 	 */
 	public function renderFull(int $itemCount): string
 	{
-		$totalItemCount = max(0, intval($itemCount));
+		$totalItemCount = max(0, $itemCount);
 
 		$data = [];
 
diff --git a/src/Database/Database.php b/src/Database/Database.php
index 1c9e24adef..e5dec2d75e 100644
--- a/src/Database/Database.php
+++ b/src/Database/Database.php
@@ -1748,9 +1748,10 @@ class Database
 	 * Fetch a database variable
 	 *
 	 * @param string $name
-	 * @return string content
+	 * @return string|null content or null if inexistent
+	 * @throws \Exception
 	 */
-	public function getVariable(string $name): string
+	public function getVariable(string $name)
 	{
 		$result = $this->fetchFirst("SHOW GLOBAL VARIABLES WHERE `Variable_name` = ?", $name);
 		return $result['Value'] ?? null;