错误提示：
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A PHP Error was encountered
Severity: Notice
Message: Only variable references should be returned by reference
Filename: core/Common.php
Line Number: 257
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原代码：
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return $_config[0] =& $config;
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修改后:
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$_config[0] =& $config;
return $_config[0];
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以上所述就是本文的全部内容了，希望大家能够喜欢。