Fixed some notices

diff --git a/course/lib.php b/course/lib.php
index 458891befbda916c59cb759379b21fdaa137cb97..26ebd62582d25587fbc5f3d483ede14c0a3c7bf2 100644 (file)
--- a/course/lib.php
+++ b/course/lib.php
@@ -485,6 +485,7 @@ function print_log($course, $user=0, $date=0, $order="l.time ASC", $page=0, $per
         $joins[] = "l.time > '$date' AND l.time < '$enddate'";
     }
 
+    $selector = '';
     for ($i = 0; $i < count($joins); $i++) {
         $selector .= $joins[$i] . (($i == count($joins)-1) ? " " : " AND ");
     }