1 files changed, 13 insertions, 5 deletions
diff --git a/src/SemanticScuttle/Service/User.php b/src/SemanticScuttle/Service/User.php
index 7f0624e..9ef8430 100644
--- a/src/SemanticScuttle/Service/User.php
+++ b/src/SemanticScuttle/Service/User.php
@@ -203,18 +203,26 @@ class SemanticScuttle_Service_User extends SemanticScuttle_DbService
         }
     }
 
-    /* Takes an numerical "id" or a string "username"
-     and returns the numerical "id" if the user exists else returns NULL */
-    function getIdFromUser($user) {
+    /**
+     * Obtains the ID of the given user name.
+     * If a user ID is passed, it is returned.
+     * In case the user does not exist, NULL is returned.
+     *
+     * @param string|integer $user User name or user ID
+     *
+     * @return integer NULL if not found or the user ID
+     */
+    public function getIdFromUser($user)
+    {
         if (is_int($user)) {
             return intval($user);
         } else {
             $objectUser = $this->getObjectUserByUsername($user);
-            if($objectUser != NULL) {
+            if ($objectUser != null) {
                 return $objectUser->getId();
             }
         }
-        return NULL;
+        return null;
     }
 
     /**