From f8f20f3d5c6ee4bd5e7a43696effbb2278bd3f81 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Lucas?= <sebastien@slucas.fr>
Date: Wed, 3 Apr 2013 14:54:03 +0200
Subject: [PATCH] Update addURLParameter to allow for a leading ?. re #40

---
 base.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/base.php b/base.php
index 9cd0cce..26271e8 100644
--- a/base.php
+++ b/base.php
@@ -175,14 +175,19 @@ function localize($phrase, $count=-1) {
 }
 
 function addURLParameter($urlParams, $paramName, $paramValue) {
+    $start = "";
+    if (preg_match ("#^\?(.*)#", $urlParams, $matches)) {
+        $start = "?";
+        $urlParams = $matches[1];
+    }
     $params = array();
     parse_str($urlParams, $params);
-    if (empty ($paramValue)) {
+    if (empty ($paramValue) && $paramValue != 0) {
         unset ($params[$paramName]);
     } else {
         $params[$paramName] = $paramValue;   
     }
-    return http_build_query($params);
+    return $start . http_build_query($params);
 }
 
 class Link