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php中session_unset与session_destroy的区别分析

Jun 13, 2016 pm 12:08 PM
php session unset and analyze the difference exist of freed

session_unset()
释放当前在内存中已经创建的所有$_SESSION变量,但不删除session文件以及不释放对应的session
id

session_destroy()
删除当前用户对应的session文件以及释放session
id,内存中的$_SESSION变量内容依然保留

因此,释放用户的session所有资源,需要顺序执行如下代码:

复制代码 代码如下:


$_SESSION['user'] = 'lowell';
session_unset();
session_destroy();
?>

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