Merge pull request #35 from Flagsmith/release/3.1.1

Release 3.1.1

Author: matthewelwell

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "flagsmith/flagsmith-php-client",
     "type": "library",
-    "version": "v3.1.0",
+    "version": "v3.1.1",
     "license": "BSD-3-Clause",
     "authors": [
         {

src/Engine/Utils/Collections/CollectionTrait.php

@@ -23,6 +23,7 @@ protected function setValues($values)
      * Returns the object to JSON serialize.
      * @return array
      */
+    #[\ReturnTypeWillChange]
     public function jsonSerialize()
     {
         return $this->getArrayCopy();

src/Engine/Utils/Collections/MultivariateFeatureStateValueModelList.php

@@ -14,6 +14,7 @@ class MultivariateFeatureStateValueModelList extends \ArrayObject implements \Js
      * Returns the object to JSON serialize.
      * @return array
      */
+    #[\ReturnTypeWillChange]
     public function jsonSerialize()
     {
         $stateValues = $this->getArrayCopy();