[Cache] Added reserved characters constant for CacheItem

andyexeter · fabpot · commit 6903146811d5 · 2019-09-11T06:59:27.000+02:00
diff --git a/ItemInterface.php b/ItemInterface.php
@@ -37,6 +37,11 @@ interface ItemInterface extends CacheItemInterface
      */
     const METADATA_TAGS = 'tags';
 
+    /**
+     * Reserved characters that cannot be used in a key or tag.
+     */
+    const RESERVED_CHARACTERS = '{}()/\@:';
+
     /**
      * Adds a tag to a cache item.
      *
