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];

以上内容转载自丸迷人的博客 http://blog.sina.com.cn/s/blog_6718a8f40102vz05.html