Support PHP 8.5 (#343)

PHP 8.4:

- Function parameters that are null by default must be declared nullable.

No further changes are required to support PHP 8.5.

library/Graphite/Graphing/MetricsQuery.php

@@ -62,7 +62,7 @@ class MetricsQuery implements Queryable, Filterable, Fetchable
         $this->dataSource = $dataSource;
     }
 
-    public function from($target, array $fields = null)
+    public function from($target, ?array $fields = null)
     {
         if ($fields !== null) {
             throw new InvalidArgumentException('Fields are not applicable to this kind of query');

library/Graphite/Util/TimeRangePickerTools.php

@@ -41,7 +41,7 @@ final class TimeRangePickerTools
      *
      * @return  UrlParams               The copy
      */
-    public static function copyAllRangeParameters(UrlParams $copy = null, UrlParams $origin = null)
+    public static function copyAllRangeParameters(?UrlParams $copy = null, ?UrlParams $origin = null)
     {
         if ($origin === null) {
             $origin = Url::fromRequest()->getParams();

library/Graphite/Web/Controller/TimeRangePickerTrait.php

@@ -23,11 +23,11 @@ trait TimeRangePickerTrait
     /**
      * Process the given request using the forms
      *
-     * @param   Request $request    The request to be processed
+     * @param   ?Request $request    The request to be processed
      *
      * @return  Request             The request supposed to be processed
      */
-    protected function handleTimeRangePickerRequest(Request $request = null)
+    protected function handleTimeRangePickerRequest(?Request $request = null)
     {
         $this->getTimeRangePickerCommonForm()->handleRequest($request);
         return $this->getTimeRangePickerCustomForm()->handleRequest($request);

library/Graphite/Web/Widget/Graphs.php

@@ -204,11 +204,11 @@ abstract class Graphs extends AbstractWidget
     /**
      * Process the given request using this widget
      *
-     * @param   Request $request    The request to be processed
+     * @param   ?Request $request    The request to be processed
      *
      * @return  $this
      */
-    public function handleRequest(Request $request = null)
+    public function handleRequest(?Request $request = null)
     {
         if ($request === null) {
             $request = Icinga::app()->getRequest();