PHP防刷新页面代码

2015-01-15  871阅

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session_start();
$allow_sep = "30000";
if (isset($_SESSION["post_sep"]))
{
if (time() - $_SESSION["post_sep"] < $allow_sep)
{
exit("请不要反复刷新，请30000秒后再来操作。");
}
else
{
$_SESSION["post_sep"] = time();
}
}
else
{
$_SESSION["post_sep"] = time();
}