diff --git a/application/controllers/infofix.php b/application/controllers/infofix.php
index 960b1aed..6bf4e364 100644
--- a/application/controllers/infofix.php
+++ b/application/controllers/infofix.php
@@ -137,6 +137,12 @@ class infofix extends CI_Controller
     $newStr = $keyArr[2];
     $is_id = $keyArr[3];
 
+    // 容错2
+    if (empty($ic_id) || empty($is_id) || empty($newStr) || empty($oldStr)) {
+      echo json_encode(array());
+      return false;
+    }
+
     // ic_content
     $ic = $this->infoContents_model->get_ic_contents2($ic_id);
     if (!empty($ic)) {