use visited lookup with reference to gain performance

Norman Soetbeer · fabpot · commit 3a7a9aa0f60d · 2015-03-23T09:55:31.000+01:00
diff --git a/Dumper/PhpDumper.php b/Dumper/PhpDumper.php
@@ -1151,7 +1151,7 @@ private function getDefinitionsFromArguments(array $arguments)
      *
      * @return bool
      */
-    private function hasReference($id, array $arguments, $deep = false, $visited = array())
+    private function hasReference($id, array $arguments, $deep = false, &$visited = array())
     {
         foreach ($arguments as $argument) {
             if (is_array($argument)) {

Original file line number	Diff line number	Diff line change
`@@ -1151,7 +1151,7 @@ private function getDefinitionsFromArguments(array $arguments)`
`1151`	`1151`	`*`
`1152`	`1152`	`* @return bool`
`1153`	`1153`	`*/`
`1154`		`- private function hasReference($id, array $arguments, $deep = false, $visited = array())`
	`1154`	`+ private function hasReference($id, array $arguments, $deep = false, &$visited = array())`
`1155`	`1155`	`{`
`1156`	`1156`	`foreach ($arguments as $argument) {`
`1157`	`1157`	`if (is_array($argument)) {`