<?php
/**
* Copyright 2017 Facebook, Inc.
*
* You are hereby granted a non-exclusive, worldwide, royalty-free license to
* use, copy, modify, and distribute this software in source code or binary
* form for use in connection with the web services and APIs provided by
* Facebook.
*
* As with any software that integrates with the Facebook platform, your use
* of this software is subject to the Facebook Developer Principles and
* Policies [http://developers.facebook.com/policy/]. This copyright notice
* shall be included in all copies or substantial portions of the software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
namespace Facebook\PersistentData;
use Facebook\Exceptions\FacebookSDKException;
/**
* Class FacebookSessionPersistentDataHandler
*
* @package Facebook
*/
class FacebookSessionPersistentDataHandler implements PersistentDataInterface
{
/**
* @var string Prefix to use for session variables.
*/
protected $sessionPrefix = 'FBRLH_';
/**
* Init the session handler.
*
* @param boolean $enableSessionCheck
*
* @throws FacebookSDKException
*/
public function __construct($enableSessionCheck = true)
{
if ($enableSessionCheck && session_status() !== PHP_SESSION_ACTIVE) {
throw new FacebookSDKException(
'Sessions are not active. Please make sure session_start() is at the top of your script.',
720
);
}
}
/**
* @inheritdoc
*/
public function get($key)
{
if (isset($_SESSION[$this->sessionPrefix . $key])) {
return $_SESSION[$this->sessionPrefix . $key];
}
return null;
}
/**
* @inheritdoc
*/
public function set($key, $value)
{
$_SESSION[$this->sessionPrefix . $key] = $value;
}
}