这篇文章主要介绍了php针对cookie操作的队列操作类,以实例形式分析了设置cookie的常见方法,以及队列操作cookie的方法,最后给出了针对常见问题的总结,需要的朋友
本文实例讲述了php针对cookie操作的队列操作类。分享给大家供大家参考。具体分析如下:
这里包括了从简单的cookie操作(增加,删除,修改)到我们的cookie队列操作类的操作,对此感兴趣的朋友可以参考一下。
一、PHP 的COOKIE
cookie 是一种在远程浏览器端储存数据并以此来跟踪和识别用户的机制。
PHP 在http 协议的头信息里发送cookie,因此 setcookie() 函数必须在其它信息被输出到浏览器前调用,这和对 header() 函数的限制类似.
设置cookie:
可以用 setcookie()或 setrawcookie()函数来设置 cookie,也可以通过向客户端直接发送http 头来设置.
这里使用 setcookie()函数设置cookie:
复制代码 代码如下:
bool setcookie ( string name [, string value [,int expire [,string path [,string domain [,bool secure [,bool httponly]]]]]] )
其中的参数:
name: cookie 变量名
value: cookie 变量的值
expire: 有效期结束的时间
path: 有效目录
domain: 有效域名,顶级域唯一
secure: 如果值为 1,则cookie 只能在https 连接上有效,如果为默认值 0,则http 和 https 都可以.
来看几个例子,简单的:
复制代码 代码如下:
SetCookie("MyCookie", "Value of MyCookie");
带失效时间的.代码如下:
复制代码 代码如下:
SetCookie("WithExpire", "Expire in 1 hour", time()+3600);//3600秒=1小时
什么都有的,代码如下:
复制代码 代码如下:
SetCookie("FullCookie", "Full cookie value", time()+3600, "/forum", ".phpuser.com", 1);
我们需要用到队列,代码如下:
复制代码 代码如下:
class QueueSvc
{/*{{{*/
private $length; // 队列的长度
private $server_arr;
public function __construct($length,$server_arr)
{
$this->length = $length;
$this->server_arr = $server_arr;
}
public function getServerArr()
{
return $this->server_arr;
}
public function set($server_name)
{
self::push($server_name);
}
private function push($server_name)
{
//有重复的记录,把重复的删掉
if(self::isServerExist($server_name)){
self::removeRepeat($server_name);
}else{
if(self::isFull()){
//如果已经满了,要把队列最后一个记录删掉
array_pop($this->server_arr);
}
}
//如果队列为空,先置为空数组
if(emptyempty($this->server_arr))
$this->server_arr = array();
//向队列头添加数据
array_unshift($this->server_arr,$server_name);
}
private function isFull()
{
if(is_array($this->server_arr) && (count($this->server_arr) >= $this->length))
return true;
return false;
}
private function isServerExist($server_name)
{
if(is_array($this->server_arr) && in_array($server_name,$this->server_arr))
return true;
return false;
}
private function removeRepeat($server_name)
{
if(is_array($this->server_arr) && in_array($server_name,$this->server_arr))
{
foreach($this->server_arr as $key=>$value)
{
if($server_name == $value)
{
$this->array_remove($this->server_arr,$key);
}
}
}
}
private function array_remove(&$arr, $offset) {
array_splice ( $arr, $offset, 1 );
}
}/*}}}*/require_once('queue_svc.php');
class CookieSvc
{/*{{{*/
const COOKIE_KEY = "GAME_SERVER";
const SEPARATE = "|";
const COOKIE_LENGTH = "2";
public function getCookieArr()
{/*{{{*/
$server_str = $_COOKIE[self::COOKIE_KEY];
$server_str = $_COOKIE['GAME_SERVER'];
if($server_str == ''){
$result = array();
}else{
$result = explode(self::SEPARATE,$server_str);
}
return $result;
}/*}}}*/
public function set($cookie_id)
{/*{{{*/
$server_arr = self::getCookieArr();
if($cookie_id != false)
{
$que = new QueueSvc(self::COOKIE_LENGTH,$server_arr);
$que->set($cookie_id);
$server_new = $que->getServerArr();
if(is_array($server_new))
{
$cookie_str = implode(self::SEPARATE,$server_new);
setcookie(self::COOKIE_KEY,$cookie_str,time()+3600,'/');
}
}
}/*}}}*/
}/*}}}*/
不多解释了,这个别人用的不多,昨天因为需要写的,留一下吧,也许以后还用得到,调用的代码很简单,代码如下:
复制代码 代码如下:

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