<div class="codetitle"><a style="CURSOR: pointer" data="48118" class="copybut" id="copybut48118" onclick="doCopy('code48118')"> 代码如下:@H_502_1@<div class="codebody" id="code48118">
<?PHP
session_start();
$k=$_GET['k'];
$t=$_GET['t'];
$allowTime = 1800;//防刷新时间
$ip = get_client_ip();
$allowT = md5($ip.$k.$t);
if(!isset($_SESSION[$allowT]))
{
$refresh = true;
$_SESSION[$allowT] = time();
}elseif(time() - $_SESSION[$allowT]>$allowTime){
$refresh = true;
$SESSION[$allowT] = time();
}else{
$refresh = false;
}
?>
@H502_1@