Merge pull request #97 from eileenmcnaughton/patch-1

PHP 8.4 type hint fixes

Author: tplaner

src/When.php

@@ -1190,23 +1190,23 @@ protected static function createDaysList($days)
 
 class InvalidCombination extends Exception
 {
-    public function __construct($message = "Invalid combination.", $code = 0, Exception $previous = null)
+    public function __construct($message = "Invalid combination.", $code = 0, ?Exception $previous = null)
     {
         parent::__construct($message, $code, $previous);
     }
 }
 
 class FrequencyRequired extends Exception
 {
-    public function __construct($message = "You are required to set a frequency.", $code = 0, Exception $previous = null)
+    public function __construct($message = "You are required to set a frequency.", $code = 0, ?Exception $previous = null)
     {
         parent::__construct($message, $code, $previous);
     }
 }
 
 class InvalidStartDate extends Exception
 {
-    public function __construct($message = "The start date must be the first occurrence.", $code = 0, Exception $previous = null)
+    public function __construct($message = "The start date must be the first occurrence.", $code = 0, ?Exception $previous = null)
     {
         parent::__construct($message, $code, $previous);
     }