php通过设置session有效期 避免用户误操作 原生php方法

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 $id = $_POST['id'];

if (isset($id) &&$id!==”) {
// unset($_SESSION[“time”]); //清空键 //$_SESSION[“time”][]=time();//存一次数组存取ok;
//数组存session;
// echo count($_SESSION[“time”]);//获取数组长度 // echo “ ”; // echo$_SESSION[“time”][“0”];
// echo “
”;
// var_dump($_SESSION[“time”]); if(count($_SESSION[“time”])>2){
$minute = (time()-$_SESSION[“time”][“0”])/60;
// echo $minute;$str_minute = substr($minute,0,stripos($minute, “.”));//查下是几分钟了
// echo “
”;
// echo $str_minute; if($str_minute>1){
array_splice($_SESSION[“time”],0,1);//时间过期 删除第一个元素；$sqldel = "delete from zzcms_userneed where id='$id’”;$resdel = mysql_query($sqldel); if(mysql_affected_rows()>0){$_SESSION[“time”][]=time();
echo ““;
}else{
echo ““;
}

      }else{
        echo "<script>alert('操作频繁，请稍后重试！')</script>";
      }
}else{
    $sqldel = "delete from zzcms_userneed where id='$id'";
    $resdel = mysql_query($sqldel);
    if(mysql_affected_rows()>0){
        $_SESSION["time"][]=time();
        echo "<script>alert('删除成功！')</script>";
    }else{
        echo "<script>alert('删除失败，请联系网站管理员！')</script>";
    }  
}

}