From: skodak <skodak>
Date: Sat, 30 Dec 2006 21:25:13 +0000 (+0000)
Subject: MDL-8029 removed obsoleted use of nvl() from weblib
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=d90ffc1f66a9739d379d73f252660b48fd413f36;p=moodle.git

MDL-8029 removed obsoleted use of nvl() from weblib
---

diff --git a/lib/weblib.php b/lib/weblib.php
index e079a47a5e..972ec7f392 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -158,8 +158,11 @@ function p($var, $strip=false) {
  * @return string
  */
 function get_referer() {
-
-    return strip_querystring(nvl($_SERVER['HTTP_REFERER']));
+    if (isset($_SERVER['HTTP_REFERER'])) {
+        return strip_querystring($_SERVER['HTTP_REFERER']);
+    } else {
+        return '';        
+    }
 }