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

moodle · Dec 30, 2006 · d90ffc1 · d90ffc1
1 parent b490cf7
commit d90ffc1
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/lib/weblib.php b/lib/weblib.php
@@ -158,8 +158,11 @@ function strip_querystring($url) {
  * @return string
  */
 function get_referer() {
-
-    return strip_querystring(nvl($_SERVER['HTTP_REFERER']));
+    if (isset($_SERVER['HTTP_REFERER'])) {
+        return strip_querystring($_SERVER['HTTP_REFERER']);
+    } else {
+        return '';        
+    }
 }