update

app/Http/functions.php

@@ -696,5 +696,9 @@ function getVar($text)
 {
     $pattern = '/\{.*?\}/';
     preg_match_all($pattern, $text, $matches);
-    return $matches[0] ?? '';
+    if (count($matches[0]) > 0) {
+        // 数组转英文逗号分割的字符串
+        return implode(',', $matches[0]);
+    }
+    return '';
 }