+ /**
+ * Return a content of a variable or null if not found
+ *
+ * @param $var The variable we are looking for
+ * @return $content Content of the variable or null if not found
+ */
+ private function readVariable ($var) {
+ // First everything is not found
+ $content = null;
+
+ // Now search for it
+ for ($idx = $this->varStack->getIterator(); $idx->valid(); $idx->next()) {
+ // Get current item
+ $currEntry = $idx->current();
+
+ // Is the entry found?
+ if ($currEntry['name'] == $var) {
+ // Found!
+ $content = $currEntry['value'];
+ break;
+ }
+ }
+
+ // Return the current position
+ return $content;
+ }
+