1 files changed, 4 insertions, 4 deletions

diff --git a/buildmaster/log.php b/buildmaster/log.php
index f6de94b..371bb86 100644
--- a/buildmaster/log.php
+++ b/buildmaster/log.php
@@ -4,7 +4,7 @@ require_once BASE . "/lib/mysql.php";
 
 
   $filter = "";
-  if (isset($_GET["show"]) &&
+  if (array_key_exists("show", $_GET) &&
     ($_GET["show"] == "ssh")) {
     $to_show = "ssh";
     $columns = array(
@@ -14,9 +14,9 @@ require_once BASE . "/lib/mysql.php";
       "parameters" => "`ssh_log`.`parameters`"
     );
     $join = " LEFT" . mysql_join_ssh_log_build_slaves();
-    if (isset($_GET["action"]))
+    if (array_key_exists("action", $_GET))
       $filter .= " AND `ssh_log`.`action` LIKE from_base64(\"" . base64_encode($_GET["action"]) . "\")";
-    if (isset($_GET["slave"]))
+    if (array_key_exists("slave", $_GET))
       $filter .= " AND `build_slaves`.`name` LIKE from_base64(\"" . base64_encode($_GET["slave"]) . "\")";
   } else {
     $to_show = "email";
@@ -36,7 +36,7 @@ require_once BASE . "/lib/mysql.php";
       ") ON `email_log`.`gpg_key`=`gpg_keys`.`id`";
   }
 
-  if (isset($_GET["from"]))
+  if (array_key_exists("from", $_GET))
     $min_time = $_GET["from"];
   elseif ($to_show == "email")
     $min_time = "1 00:00:00";