订单号生成优化

app/api/service/UtilService.php

@@ -19,13 +19,14 @@ class UtilService
 //        return $str.'-'. $timestamp . $random . ($userPart ? ('-' . $userPart) : '');
 //    }
 
-    public static function generateCompactOrderNo($userId = null,$str=null)
+    //生成订单号 示例 ORD-042-230815123456789
+    public static function generateCompactOrderNo($userId = null, $prefix = null)
     {
-        $time = substr(time(), -6); // 取时间戳后6位
-        $rand = mt_rand(100000, 999999); // 6位随机数
-        $user = $userId ? chr(65 + ($userId % 26)) : ''; // 用户标识转A-Z
+        $time = date('ymdHis');
+        $rand = mt_rand(100, 999);
+        $userCode = $userId ? str_pad($userId % 1000, 3, '0', STR_PAD_LEFT) : '';
 
-        return $str . $user . $time . $rand;
+        return trim(implode('-', array_filter([$prefix, $userCode, $time.$rand])), '-');
     }
 
     public static function listWithTags($list, string $modelClass, string $tagIdsField = 'tag_ids'): array