php類用于處理cookie

<?php
    // cookieClass
    // Copyright (C) 2005 JRSofty Programming.
    // http://jrsofty1.stinkbugonline.com
    // Licensed under GNU/GPL


class cookieClass{

    var $cName = '';
    var $cTime = '';
    var $cSerialize = false;        
    var $cPath = '';

    function cookieClass($cookieName, $cookieTimeout, $cookieSerialize = false, $cookiePath = "/"){
        $this->cName = $cookieName;
        $this->cTime = $cookieTimeout;
        $this->cSerialize = $cookieSerialize;
        $this->cPath = $cookiePath;
        // This should fix the issue if you have cookies set and THEN turn on the serialization.
        $iname = $this->cName . "_S";
        if($this->cSerialize && !isset($_COOKIE[$iname])){
            $cookArr = array();
            foreach($_COOKIE as $name=>$val){
                if(strpos($name,$this->cName) !== false ){ // make sure it is a cookie set by this application
                    $subname = substr($name,strlen($this->cName) + 1);
                    $cookArr[$subname] = $val;
                    $this->KillCookie($name);
                }
            }
            $this->WriteCookie($cookArr);
        }
        // This is the opposite from above. changes a serialized cookie to multiple cookies without loss of data
        if(!$this->cSerialize && isset($_COOKIE[$iname])){
            $cookArr = unserialize($_COOKIE[$iname]);
            $this->KillCookie($iname);
            $this->WriteCookie($cookArr);
        }

    }

    function DestroyAllCookies(){
        foreach($_COOKIE as $name=>$val){
            if(strpos($name,$this->cName) !== false){
                $_COOKIE[$name] = NULL;
                $this->KillCookie($name);
            }
        }
    }

    function ReadCookie($item){
        if($this->cSerialize){
            $name = $this->cName . "_S";
            if(isset($_COOKIE[$name])){
                // handle the cookie as a serialzied variable
                $sCookie = unserialize($_COOKIE[$name]);
                if(isset($sCookie[$item])){
                    return $sCookie[$item];
                }else{
                    return NULL;
                }
            }else{
                return NULL;
            }
        }else{
            $name = $this->cName . "_" . $item;
            if(isset($_COOKIE[$name])){
                // handle the item as separate cookies
                return $_COOKIE[$name];
            }else{
                return NULL;
            }
        }   
    }

    function KillCookie($cName){
        $tStamp = time() - 432000;
        setcookie($cName,"",$tStamp,$this->cPath);
    }

    function WriteCookie($itemArr){
        if($this->cSerialize){                  
            $sItems = serialize($itemArr);
            $name = $this->cName . "_S";
            $_COOKIE[$name] = $sItems;
            $tStamp = time() + $this->cTime;
            setcookie($name,$sItems,$tStamp,$this->cPath);
        }else{
            $tStamp = time() + $this->cTime;
            foreach($itemArr as $nam=>$val){
                $name = $this->cName . "_" . $nam;
                $_COOKIE[$name] = $val;
                setcookie($name,$val,$tStamp,$this->cPath);
            }e
        }
    }

}

?></pre>