[Stopwatch] Add ROOT constant to make it easier to reference

alamirault · alamirault · commit 01ca38dac896 · 2024-05-22T21:44:11.000+02:00
diff --git a/performance.rst b/performance.rst
@@ -382,10 +382,16 @@ All events that don't belong to any named section are added to the special secti
 called ``__root__``. This way you can get all stopwatch events, even if you don't
 know their names, as follows::
 
-    foreach($this->stopwatch->getSectionEvents('__root__') as $event) {
+    use Symfony\Component\Stopwatch\Stopwatch;
+
+    foreach($this->stopwatch->getSectionEvents(Stopwatch::ROOT) as $event) {
         echo (string) $event;
     }
 
+.. versionadded:: 7.2
+
+    The ``Stopwatch::ROOT`` constant as a shortcut for ``__root__`` was introduced in Symfony 7.2.
+
 Learn more
 ----------
 
