[HttpKernel] Initialize DataCollector data as array

1ed · 1ed · commit ceac42ffd059 · 2014-09-30T11:28:36.000+02:00
This fixes a DumpDataCollector error when the debug panel is opened
without collected data:

ContextErrorException: Warning: Invalid argument supplied for foreach() -
in vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DataCollector/DumpDataCollector.php at line 165
diff --git a/DataCollector/DataCollector.php b/DataCollector/DataCollector.php
@@ -23,7 +23,7 @@
  */
 abstract class DataCollector implements DataCollectorInterface, \Serializable
 {
-    protected $data;
+    protected $data = array();
 
     /**
      * @var ValueExporter

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@`
`23`	`23`	`*/`
`24`	`24`	`abstract class DataCollector implements DataCollectorInterface, \Serializable`
`25`	`25`	`{`
`26`		`- protected $data;`
	`26`	`+ protected $data = array();`
`27`	`27`
`28`	`28`	`/**`
`29`	`29`	`* @var ValueExporter`