Added missing class variable definition.

divix1988 · web-flow · commit 89559865b7d7 · 2016-08-18T22:30:05.000+02:00
diff --git a/doc/book/examples.md b/doc/book/examples.md
@@ -171,6 +171,7 @@ class CacheListener implements ListenerAggregateInterface
     use ListenerAggregateTrait;
 
     private $cache;
+    private $listeners = [];
 
     public function __construct(Cache $cache)
     {

Original file line number	Diff line number	Diff line change
`@@ -171,6 +171,7 @@ class CacheListener implements ListenerAggregateInterface`
`171`	`171`	`use ListenerAggregateTrait;`
`172`	`172`
`173`	`173`	`private $cache;`
	`174`	`+ private $listeners = [];`
`174`	`175`
`175`	`176`	`public function __construct(Cache $cache)`
`176`	`177`	`{`