Gazelle/classes/cookie.class.php

<?php
/*************************************************************************|
|--------------- Cookie class --------------------------------------------|
|*************************************************************************|

This class handles cookies.

$Cookie->get(); is user provided and untrustworthy

|*************************************************************************/

/*
interface COOKIE_INTERFACE {
  public function get($Key);
  public function set($Key, $Value, $Seconds, $LimitAccess);
  public function del($Key);

  public function flush();
}
*/

class COOKIE /*implements COOKIE_INTERFACE*/
{
    const LIMIT_ACCESS = true; //If true, blocks JS cookie API access by default (can be overridden case by case)
    const PREFIX = ''; //In some cases you may desire to prefix your cookies

    public function get($Key)
    {
        if (!isset($_COOKIE[self::PREFIX.$Key])) {
            return false;
        }
        return $_COOKIE[self::PREFIX.$Key];
    }

    //Pass the 4th optional param as false to allow JS access to the cookie
    public function set($Key, $Value, $Seconds = 86400, $LimitAccess = self::LIMIT_ACCESS)
    {
        setcookie(self::PREFIX.$Key, $Value, time() + $Seconds, '/', SITE_DOMAIN, $_SERVER['SERVER_PORT'] === '443', $LimitAccess, false);
    }

    public function del($Key)
    {
        setcookie(self::PREFIX.$Key, '', time() - 24 * 3600); //3600 vs 1 second to account for potential clock desyncs
    }

    public function flush()
    {
        $Cookies = array_keys($_COOKIE);
        foreach ($Cookies as $Cookie) {
            $this->del($Cookie);
        }
    }
}