classe cookie

[jerry6565]

Ciao ragazzi, ho scritto questa piccola classe ma non funziona qualcuno sa come aiutarmi e/o come migliorarla?

    class cookies
    {
        public function __construct($cryptCookie=true)
        {
            $this->cryptCookie = $cryptCookie;
        }
        
        function cookieName($name, $array)
        {
            if ( $this->cryptCookie )
            {
                if ( $array )
                {
                    return md5('@'.$name);
                }
                else
                    return md5($name);
            }
            else
                return $name;            
        }
        
        function set($name, $value, $expire = false)
        {
            $name     = is_array($value) ? $this->cookieName($name, true) : $this->cookieName($name, false);
                    
            $value     = is_array($value) ? serialize($value) : base64_encode($value);
            
            $expire    = $expire ? $expire : 1095;
            
            return (setrawcookie("$name", "$value", ( $expire*(60*60*24) ) ) ? true : false);
        }             
        

        function get($name)
        {
            $name = ($this->cryptCookie ? md5($name) : $name);        
            
            if ( isset( $_COOKIE[$this->cookieName($name, true)] ) )
            {
                return unserialize( $_COOKIE[$this->cookieName($name, true)] );
            }
            else if ( isset( $_COOKIE[$this->cookieName($name, false)] ) )
            {
                return base64_decode( $_COOKIE[$this->cookieName($name, false)] );
            }
            else
                return false;
        }                
 
         function killAll(){
            foreach($_COOKIE as $name=>$val)
            {
                $this->KillCookie($name);
            }
        }
        
        function kill($name){
            setcookie($name,"",(time() - 432000));
        }
    }
    
    $cookie = new cookies;

    $cookie->set('ciao', 'test', 30);

    echo $cookie->get('ciao');