26 lines
423 B
PHP
26 lines
423 B
PHP
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<?php
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function init_session()
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{
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if (!isset($_SESSION))
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session_start();
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if (!isset($_SESSION['id']))
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return ;
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$now = time();
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if(($now-$_SESSION['session_time'])>1200) //超时时间,单位:秒,这里设为20分钟
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{
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unset($_SESSION['id']); //超时了.
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return;
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}
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$_SESSION['session_time']=$now; //还没超时
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}
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function clear_session()
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{
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session_destroy();
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}
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?>
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