升級(jí)php5.6提示，Codeigniter 2.x項(xiàng)目提示
A PHP Error was encountered
Severity: Notice
Message: Only variable references should be returned by reference
Filename: core/Common.php
Line Number: 257
解決方法
進(jìn)入system/core,修改Comm.php 257行
修改前
return $_config[0] =& $config;
修改后
$_config[0] =& $config; return $_config[0];
