Type-hint constants

Author: jeromegamez

src/Firebase/Contract/Database.php

@@ -19,7 +19,10 @@
  */
 interface Database
 {
-    public const SERVER_TIMESTAMP = ['.sv' => 'timestamp'];
+    /**
+     * @var array{'.sv': 'timestamp'}
+     */
+    public const array SERVER_TIMESTAMP = ['.sv' => 'timestamp'];
 
     /**
      * Returns a Reference to the root or the specified path.

src/Firebase/Valinor/Normalizer.php

@@ -15,7 +15,7 @@
  */
 final class Normalizer
 {
-    private const DEFAULT_JSON_OPTIONS = JSON_UNESCAPED_SLASHES
+    private const int DEFAULT_JSON_OPTIONS = JSON_UNESCAPED_SLASHES
         | JSON_UNESCAPED_UNICODE
         | JSON_UNESCAPED_SLASHES
         | JSON_UNESCAPED_UNICODE
@@ -64,7 +64,7 @@ public function toArray(mixed $value): array
     }
 
     /**
-     * @param int $options JSON encoding options
+     * @param int|null $options JSON encoding options
      *
      * @return non-empty-string
      */