Customvar view helper: show structured data

refs #7569

modules/monitoring/application/views/helpers/Customvar.php

@@ -0,0 +1,55 @@
+<?php
+
+class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
+{
+    /**
+     * Create dispatch instance
+     *
+     * @return self
+     */
+    public function checkPerformance()
+    {
+        return $this;
+    }
+
+    public function customvar($struct)
+    {
+        if (is_string($struct) || is_int($struct) || is_float($struct)) {
+            return $this->view->escape((string) $struct);
+        } elseif (is_array($struct)) {
+            return $this->renderArray($struct);
+        } elseif (is_object($struct)) {
+            return $this->renderObject($struct);
+        }
+    }
+
+    protected function renderArray($array)
+    {
+        if (empty($array)) {
+            return '[]';
+        }
+        $out = "<ul>\n";
+        foreach ($array as $val) {
+            $out .= '<li>' . $this->customvar($val) . "</li>\n";
+        }
+        return $out . "</ul>\n";
+    }
+
+    protected function renderObject($object)
+    {
+        if (empty($object)) {
+            return '{}';
+        }
+        $out = "{<ul>\n";
+        foreach ($object as $key => $val) {
+            $out .= '<li>'
+                  . $this->view->escape($key)
+                  . ' => '
+                  . $this->customvar($val)
+                  . "</li>\n";
+        }
+        return $out . "</ul>}";
+    }
+
+}
+