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做淘宝网站时的登录退出代码不理解

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Release: 2016-06-06 20:15:45
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if($_GET["op"]&&$_GET["op"]=="logout"){unset($_SESSION["user"]);}
不理解if里面的条件语句

回复内容:

if($_GET["op"]&&$_GET["op"]=="logout"){unset($_SESSION["user"]);}
不理解if里面的条件语句

如果有操作(op)且操作是logout,就清空session

希望有所帮助~ :)

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