Merge pull request #20 from lunetics/patch-1

Reduce possibility of breaking the symfony Toolbar

Author: dunglas

src/DataCollector/MercureDataCollector.php

@@ -36,9 +36,13 @@ public function collect(Request $request, Response $response, \Throwable $except
             'count' => 0,
             'duration' => 0.0,
             'memory' => 0,
-            'publishers' => iterator_to_array($this->publishers),
+            'publishers' => [],
         ];
 
+        foreach ($this->publishers as $name => $publisher) {
+            $this->data['publishers'][$name]['messages'] = $publisher->getMessages();
+        }
+
         foreach ($this->publishers as $name => $publisher) {
             $this->data['duration'] += $publisher->getDuration();
             $this->data['memory'] += $publisher->getMemory();