vendor/topthink/framework/src/think/session/Store.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: yunwuxin <448901948@qq.com>
// +----------------------------------------------------------------------

namespace think\session;

use think\contract\SessionHandlerInterface;
use think\helper\Arr;

class Store
{

    /**
     * Session数据
     * @var array
     */
    protected $data = [];

    /**
     * 是否初始化
     * @var bool
     */
    protected $init = null;

    /**
     * 记录Session name
     * @var string
     */
    protected $name = 'PHPSESSID';

    /**
     * 记录Session Id
     * @var string
     */
    protected $id;

    /**
     * @var SessionHandlerInterface
     */
    protected $handler;

    /** @var array */
    protected $serialize = [];

    public function __construct($name, SessionHandlerInterface $handler, array $serialize = null)
    {
        $this->name    = $name;
        $this->handler = $handler;

        if (!empty($serialize)) {
            $this->serialize = $serialize;
        }