PHP 表单防止刷新提交的方法,php表单刷新提交
摘自http://bbs.chinaunix.net/thread-667547-1-1.html
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输出表单页面的时候:(举一个例子,并不完善)
$intFlag = md5(time());
$strFlag = 'flag_$intFlag';
$_SESSION["$strFlag"] = 1;
那么接受数据的时候:
$action_flag = trim($_POST["action_flag"]);
if ($action_flag!="" && $_SESSION["$action_flag"]==1)
{
$_SESSION["$action_flag"] = 2;
//处理数据
}
else
{
die("重复提交或者其他错误");
}

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