笨不会记录所有文件名错误日志中

Question

我使用此配置登录错误

$config['log_threshold'] = 1; 

问题是一些错误不包括像这样的文件名，而其他错误，包括文件名

ERROR - 2017-04-27 14:20:16 --> Query error: You have an error in your SQL syntax; check the 
manual that corresponds to your MySQL server version for the right syntax to use near 
'ORDER BY `id` DESC' at line 4 - Invalid query: SELECT COUNT(*) AS `numrows` FROM `orders` 
WHERE `id` > ORDER BY `id` DESC 

ERROR - 2017-04-27 14:20:16 --> Severity: Error --> Call to a member function num_rows() on 
boolean /home/username/public_html/system/database/DB_query_builder.php 1391 

为什么会发生这种情况，以及如何解决它。我发现这个答案Codeigniter error log not including file name但是找不到'MY_Log.php'

Answer 1

我看到了答案：Codeigniter error log not including file name很清楚。按照这些步骤：

1. 创建MY_Log.php文件（记得MY_Log.php不MY_log.php或别的东西）在application/core文件夹中。

2. 复制下面的代码片段，并粘贴到文件：

   类MY_Log扩展CI_Log {

   public function write_log($level, $msg) 
   { 
       foreach (debug_backtrace() as $call) 
       { 
        // Somehow find the appropriate call here ... 
        if (! (/* condition to ignore error-handling calls */)) 
        { 
         break; 
        } 
   
        $msg = '['.$call['file'].'] '.$msg; 
        break; 
       } 
   
       return parent::write_log($level, $msg); 
   } 
   

   }

3. 保存文件。完成！