错误提示：

A PHP Error was encountered

Severity: Notice

Message: Only variable references should be returned by reference

Filename: core/Common.php

Line Number: 257

原代码：

return $_config[0] =& $config;

修改后:

$_config[0] =& $config;

return $_config[0];

以上所述就是本文的全部内容了，希望大家能够喜欢。