PHP8.1 Compatible

src/AbstractConfig.php

@@ -168,6 +168,7 @@ public function all()
      *
      * @return mixed
      */
+    #[\ReturnTypeWillChange]
     public function offsetGet($offset)
     {
         return $this->get($offset);
@@ -180,6 +181,7 @@ public function offsetGet($offset)
      *
      * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function offsetExists($offset)
     {
         return $this->has($offset);
@@ -193,6 +195,7 @@ public function offsetExists($offset)
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function offsetSet($offset, $value)
     {
         $this->set($offset, $value);
@@ -205,6 +208,7 @@ public function offsetSet($offset, $value)
      *
      * @return void
      */
+    #[\ReturnTypeWillChange]
     public function offsetUnset($offset)
     {
         $this->set($offset, null);
@@ -222,6 +226,7 @@ public function offsetUnset($offset)
      *     function returns false. If the array is undefined, the function
      *     returns null
      */
+    #[\ReturnTypeWillChange]
     public function current()
     {
         return (is_array($this->data) ? current($this->data) : null);
@@ -234,6 +239,7 @@ public function current()
      *     If the array is empty or undefined or there is no element at the
      *     cursor, the function returns null
      */
+    #[\ReturnTypeWillChange]
     public function key()
     {
         return (is_array($this->data) ? key($this->data) : null);
@@ -247,6 +253,7 @@ public function key()
      *     array after the move, the function returns false. If the data array
      *     is undefined, the function returns null
      */
+    #[\ReturnTypeWillChange]
     public function next()
     {
         return (is_array($this->data) ? next($this->data) : null);
@@ -260,6 +267,7 @@ public function next()
      *     returns false. If the data array is undefined, the function returns
      *     null
      */
+    #[\ReturnTypeWillChange]
     public function rewind()
     {
         return (is_array($this->data) ? reset($this->data) : null);
@@ -270,6 +278,7 @@ public function rewind()
      *
      * @return bool True if the current index is valid; false otherwise
      */
+    #[\ReturnTypeWillChange]
     public function valid()
     {
         return (is_array($this->data) ? key($this->data) !== null : false);