cookie使用案例

index.php

Login In

$user=isset($_COOKIE['id'])?$_COOKIE['id']:'';
$pwd=isset($_COOKIE['password'])?$_COOKIE['password']:'';
?>

User id
Password

base.php 

$user=$_POST["id"];
$pwd=$_POST["password"];
if(!empty($_COOKIE['id'])){
setcookie("id",$user,time()+3600);
}else{
setcookie("id",$user,time()+3600);
}
if(!empty($_COOKIE['password'])){
setcookie("password",$user,time()+3600);
}else{
setcookie("password",$user,time()+3600);
}
echo "welcome, ".$_POST["id"]."login success!";
echo "
Baack to login";
if(!empty($_COOKIE['lastVisit'])){
echo "your last login time : ".$_COOKIE['lastVisit'];
setcookie("lastVisit",date("Y-m-d H:i:s"),time()+24*3600*30);
}else{
echo "your first login time :";
setcookie("lastVisit",date("Y-m-d H:i:s"),time()+24*3600*30);
}
?>