[locations] Fix wrong variable type error

1 files changed, 4 insertions, 4 deletions

diff --git a/modules-available/locations/inc/location.inc.php b/modules-available/locations/inc/location.inc.php
index 59e6d2b6..807f8577 100644
--- a/modules-available/locations/inc/location.inc.php
+++ b/modules-available/locations/inc/location.inc.php
@@ -8,7 +8,7 @@ class Location
 	private static $treeCache = false;
 	private static $subnetMapCache = false;
 
-	public static function getTree()
+	public static function getTree(): array
 	{
 		if (self::$treeCache === false) {
 			self::$treeCache = self::queryLocations();
@@ -166,15 +166,15 @@ class Location
 	 * Get nested array of all the locations and children of given locationid(s).
 	 *
 	 * @param int[]|int $idList List of location ids
-	 * @param bool $locationTree used in recursive calls, don't pass
+	 * @param ?array $locationTree used in recursive calls, don't pass
 	 * @return array list of passed locations plus their children
 	 */
-	public static function getRecursive($idList, bool $locationTree = false): array
+	public static function getRecursive($idList, ?array $locationTree = null): array
 	{
 		if (!is_array($idList)) {
 			$idList = array($idList);
 		}
-		if ($locationTree === false) {
+		if ($locationTree === null) {
 			$locationTree = self::getTree();
 		}
 		$ret = array();