add varDump helper and fix example

example.php

@@ -45,4 +45,8 @@ $templates->addSharedData([
     ],
 ]);
 
-echo $templates->render('index', [], 'fullPage');
+try {
+    echo $templates->render('index', [], 'fullPage');
+} catch (Throwable $exception) {
+    echo $exception;
+}

resources/layouts/fullPage.phtml → resources/layouts/fullPage.php

@@ -56,6 +56,7 @@
                 <div class="col s12 l10" id="right-col">
 
                     <?= $v->section('content') ?>
+                    <?= $v->varDump($menu) ?>
 
                 </div>
             </div>

src/ViewHelper/VarDump.php

+<?php
+
+namespace Syna\ViewHelper;
+
+class VarDump extends AbstractViewHelper
+{
+    public function __invoke($var = null, $highlight = true)
+    {
+        $definition = var_export($var, true);
+
+        if ($highlight) {
+            $highlighted = highlight_string('<?php ' . $definition, true);
+            $definition = str_replace('&lt;?php&nbsp;', '', $highlighted);
+        }
+
+        return '<pre>' . $definition . '</pre>';
+    }
+}