*

@@ -178,9 +178,9 @@ class BaseController extends Controller
             $params = str_replace('brandShowName[]', 'brandShowName{}', $params);
         }
 
-        if (strpos($params, 'signContract[]') !== false) {
-            $params = str_replace('signContract[]', 'signContract{}', $params);
-        }
+        $pattern = '/"signContract"\s*:\s*\[\s*\]/';
+        $replacement = '"signContract":{}';
+        $params = preg_replace($pattern, $replacement, $params);
 
         //2.去除特殊字符
         $params = $this->removeSpecialCharacter($params);