chore: Cleanup and strict types

Author: keelerm84

src/LaunchDarkly/Impl/Integrations/PHPRedisFeatureRequester.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace LaunchDarkly\Impl\Integrations;
 
 use LaunchDarkly\Integrations;
@@ -35,7 +37,13 @@ protected function readItemString(string $namespace, string $key): ?string
 
     protected function readItemStringList(string $namespace): ?array
     {
+        /** @var ?array<string, string> */
         $raw = $this->client->hgetall("$this->prefix:$namespace");
-        return $raw ? array_values($raw) : null;
+
+        if ($raw === null) {
+            return null;
+        }
+
+        return array_values($raw);
     }
 }

src/LaunchDarkly/Integrations/PHPRedis.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace LaunchDarkly\Integrations;
 
 use LaunchDarkly\Impl\Integrations;
@@ -21,8 +23,8 @@ class PHPRedis
      * To use this method, you must have installed the `phpredis` extension. After calling this
      * method, store its return value in the `feature_requester` property of your client configuration:
      *
-     *     $fr = LaunchDarkly\Integrations\PHPRedis::featureRequester([ "redis_prefix" => "env1" ]);
-     *     $config = [ "feature_requester" => $fr ];
+     *     $fr = LaunchDarkly\Integrations\PHPRedis::featureRequester(["prefix" => "env1"]);
+     *     $config = ["feature_requester" => $fr];
      *     $client = new LDClient("sdk_key", $config);
      *
      * For more about using LaunchDarkly with databases, see the

tests/Impl/Integrations/PHPRedisBigSegmentsStoreTest.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace LaunchDarkly\Impl\Integrations\Tests\Impl\Integrations;
 
 use Exception;

tests/Impl/Integrations/PHPRedisFeatureRequesterTest.php

@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace LaunchDarkly\Impl\Integrations\Tests\Impl\Integrations;
 
 use LaunchDarkly\Impl\Model\FeatureFlag;