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-rw-r--r--backend.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/backend.php b/backend.php
index 98c8eace6..b2ff46dca 100644
--- a/backend.php
+++ b/backend.php
@@ -2,7 +2,7 @@
set_include_path(__DIR__ ."/include" . PATH_SEPARATOR .
get_include_path());
- $op = $_REQUEST["op"];
+ $op = $_REQUEST['op'] ?? '';
$method = !empty($_REQUEST['subop']) ?
$_REQUEST['subop'] :
$_REQUEST["method"] ?? false;