兼容性调整

top-think · Oct 16, 2024 · 1bb0392 · 1bb0392
1 parent d554a0a
commit 1bb0392
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/helper/Arr.php b/src/helper/Arr.php
@@ -167,7 +167,7 @@ public static function exists($array, $key)
      * @param mixed $default
      * @return mixed
      */
-    public static function first($array, callable $callback = null, $default = null)
+    public static function first($array, ?callable $callback = null, $default = null)
     {
         if (is_null($callback)) {
             if (empty($array)) {
@@ -196,7 +196,7 @@ public static function first($array, callable $callback = null, $default = null)
      * @param mixed $default
      * @return mixed
      */
-    public static function last($array, callable $callback = null, $default = null)
+    public static function last($array, ?callable $callback = null, $default = null)
     {
         if (is_null($callback)) {
             return empty($array) ? value($default) : end($array);

diff --git a/src/helper/Str.php b/src/helper/Str.php
@@ -158,7 +158,7 @@ public static function length(string $value): int
      * @param  int|null $length
      * @return string
      */
-    public static function substr(string $string, int $start, int $length = null): string
+    public static function substr(string $string, int $start, ?int $length = null): string
     {
         return mb_substr($string, $start, $length, 'UTF-8');
     }