the latest code

vendor/filp/whoops/src/Whoops/Util/HtmlDumperOutput.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * Whoops - php errors for cool kids
+ * @author Filipe Dobreira <http://github.com/filp>
+ */
+
+namespace Whoops\Util;
+
+/**
+ * Used as output callable for Symfony\Component\VarDumper\Dumper\HtmlDumper::dump()
+ *
+ * @see TemplateHelper::dump()
+ */
+class HtmlDumperOutput
+{
+    private $output;
+
+    public function __invoke($line, $depth)
+    {
+        // A negative depth means "end of dump"
+        if ($depth >= 0) {
+            // Adds a two spaces indentation to the line
+            $this->output .= str_repeat('  ', $depth) . $line . "\n";
+        }
+    }
+
+    public function getOutput()
+    {
+        return $this->output;
+    }
+
+    public function clear()
+    {
+        $this->output = null;
+    }
+}