Handle default null for method parameters in php 8.4

src/Attribute.php

@@ -211,7 +211,7 @@ public function getKeyIndexes(): array
      * @param string|null $key
      * @return mixed
      */
-    public function getValue(string $key = null)
+    public function getValue(string|null $key = null)
     {
         if ($key && $this->isArrayAttribute()) {
             $key = $this->resolveSiblingKey($key);

src/ErrorBag.php

@@ -209,7 +209,7 @@ protected function isWildcardKey(string $key): bool
      * @param mixed  $ruleName
      * @return array
      */
-    protected function filterMessagesForWildcardKey(string $key, $ruleName = null): array
+    protected function filterMessagesForWildcardKey(string $key, mixed $ruleName = null): array
     {
         $messages = $this->messages;
         $pattern = preg_quote($key, '#');

src/Helper.php

@@ -63,7 +63,7 @@ public static function arrayHas(array $array, string $key): bool
      * @param  mixed       $default
      * @return mixed
      */
-    public static function arrayGet(array $array, $key, $default = null)
+    public static function arrayGet(array $array, string|null $key, mixed $default = null) : mixed
     {
         if (is_null($key)) {
             return $array;
@@ -219,7 +219,7 @@ public static function snakeCase(string $value, string $delimiter = '_'): string
      * @param  string|null  $lastSeparator
      * @return string
      */
-    public static function join(array $pieces, string $separator, string $lastSeparator = null): string
+    public static function join(array $pieces, string $separator, string|null $lastSeparator = null): string
     {
         if (is_null($lastSeparator)) {
             $lastSeparator = $separator;
@@ -245,7 +245,7 @@ public static function join(array $pieces, string $separator, string $lastSepara
      * @param  string|null  $suffix
      * @return array
      */
-    public static function wraps(array $strings, string $prefix, string $suffix = null): array
+    public static function wraps(array $strings, string $prefix, string|null $suffix = null): array
     {
         if (is_null($suffix)) {
             $suffix = $prefix;

src/Rules/Url.php

@@ -82,7 +82,7 @@ public function validateBasic($value): bool
      * @param null $scheme
      * @return bool
      */
-    public function validateCommonScheme($value, $scheme = null): bool
+    public function validateCommonScheme($value, mixed $scheme = null): bool
     {
         if (!$scheme) {
             return $this->validateBasic($value) && (bool) preg_match("/^\w+:\/\//i", $value);

tests/ValidatorTest.php

@@ -835,7 +835,7 @@ public function testEmptyArrayAssocValidation()
      *
      * @dataProvider rootAsteriskProvider
      */
-    public function testRootAsteriskValidation(array $data, array $rules, $errors = null)
+    public function testRootAsteriskValidation(array $data, array $rules, mixed $errors = null)
     {
         $validation = $this->validator->validate($data, $rules);
         $this->assertSame(empty($errors), $validation->passes());