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。