强化日志信息 仅调试模式下有效 Input类的方法支持 判断一个变量是否存在

library/think/db/Driver.php

@@ -121,6 +121,8 @@ abstract class Driver
                     $config['dsn'] = $this->parseDsn($config);
                 }
                 $this->links[$linkNum] = new PDO($config['dsn'], $config['username'], $config['password'], $this->options);
+                // 记录数据库连接信息
+                APP_DEBUG && Log::record('[ DB ] CONNECT: ' . $config['dsn'], 'info');
             } catch (\PDOException $e) {
                 if ($autoConnection) {
                     Log::record($e->getMessage(), 'error');