optionnal parameters

src/Doc/Business/LuDocBusiness.php

@@ -157,16 +157,20 @@ class LuDocBusiness
 
         $parameters = [];
         foreach ($reflection->getParameters() as $param) {
-            $p["name"] = $param->getName();
+            $p = [];
 
             if (!is_null($docParser) && isset($docParser->all_params[$param->getName()])) {
                 $p = $docParser->all_params[$param->getName()];
-                $p["annotations"] = "";
             }
             else {
                 $p["description"] = "No description available";
                 $p["type"] = "Unknown";
-                $p["annotations"] = "";
+            }
+            $p["name"] = $param->getName();
+            $p["annotations"] = "";
+
+            if ($param->isOptional()) {
+                $p["annotations"] = "Optional. Default value: " . $param->getDefaultValue();
             }
 
             $parameters[] = $p;