那些遇到过的问题

PHP自定义会话处理程序问题(PHP 7.1)

Spa*_*nix 4 php session

我刚刚从PHP 7.0迁移到PHP 7.1(当前版本的WAMP的全新/干净安装)并且它似乎已经破坏了自定义会话处理程序中的某些东西,它应该将会话保存到数据库而不是使用文件系统.

自定义处理程序类是:

class db_session_handler实现SessionHandlerInterface {

class db_session_handler implements SessionHandlerInterface {

    public function __construct($db) {
        $this->db = $db;
    }

    public function open($save_path,$session_name) {
        $this->db;
        return true;
    }

    public function close() {
        unset($this->db);
        return true;
    }

    public function read($session_id) {

        if (!isset($session_id)) {
            $session_id='';
        }

        try {
            $sql="
                SELECT
                    sess_data
                FROM
                    ue_user_session
                WHERE
                    sess_id = :sess_id
            ";
            $stmt = $this->db->prepare($sql);
            $stmt->bindParam(':sess_id', $session_id);
            $stmt->execute();
            $res = $stmt->fetchAll(PDO::FETCH_ASSOC);
            if (count($res) <> 1 ) {
                return false;
            } else {
                return $res[0]['sess_data'];
            }
        }
        catch (PDOException $e) {
            error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
            return false;
        }
    }

    public function write($session_id,$session_data) {

        try {
            $sql="
                SELECT
                    sess_data
                FROM
                    ue_user_session
                WHERE
                    sess_id = :sess_id
            ";
            $stmt = $this->db->prepare($sql);
            $stmt->bindParam(':sess_id', $session_id);
            $stmt->execute();
            $res = $stmt->fetchAll(PDO::FETCH_ASSOC);

        }
        catch (PDOException $e) {
            error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
            return false;
        }
        $ip = get_ip();
        if (isset($_SESSION['user_id'])) {
            $user_id = (int) $_SESSION['user_id'];
        } else {
            $user_id= (int) 0;
        }       
        if (empty($res)) {

            if (!isset($_SERVER['REDIRECT_URL'])) {
                $location = 'Unknown';
            } else {
                $location = $_SERVER['REDIRECT_URL'];
            }

            try {
                if (count($res) === 0) {
                    $sql="
                        INSERT INTO
                            ue_user_session
                        (
                              sess_id
                            , user
                            , start
                            , last_activity
                            , location
                            , ip
                            , user_agent
                            , user_host
                            , user_language
                            , expires
                            , sess_data
                        )
                        VALUES
                            (
                                  :sess_id
                                , 0
                                , NOW()
                                , NOW()
                                , :location
                                , :ip
                                , :user_agent
                                , :user_host
                                , :user_lang
                                , DATE_ADD(NOW(), INTERVAL 30 MINUTE)
                                , :sess_data                        
                            )               
                    ";

                    $stmt = $this->db->prepare($sql);
                    $stmt->bindParam(':sess_id', $session_id);
                    $stmt->bindParam(':location', $location);
                    $stmt->bindParam(':ip', $ip);
                    $stmt->bindParam(':user_agent', $_SERVER['HTTP_USER_AGENT']);
                    $stmt->bindParam(':user_host', $_SERVER['REMOTE_HOST']);
                    $stmt->bindParam(':user_lang', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
                    $stmt->bindParam(':sess_data', $session_data);
                    $stmt->execute();
                    return true;
                }
            }
            catch (PDOException $e) {
                error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
                return false;
            }
        } else {

            try {
                $sql="
                    UPDATE
                        ue_user
                    SET
                        last_activity = NOW()
                    WHERE
                        id =  :user_id
                ";
                $stmt = $this->db->prepare($sql);
                $stmt->bindParam(':user_id', $user_id);
                $stmt->execute();
            }
            catch (PDOException $e) {
                error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
                return false;
            }


            if (!isset($_SERVER['REDIRECT_URL'])) {
                $location = 'Unknown';
            } else {
                $location = $_SERVER['REDIRECT_URL'];
            }
            try {

                $sql="
                    UPDATE
                        ue_user_session
                    SET
                          last_activity = NOW()
                        , expires = DATE_ADD(NOW(), INTERVAL 30 MINUTE)
                        , location = :location
                        , ip = :ip
                        , user_agent = :user_agent
                        , user_host = :user_host
                        , user_language = :user_lang
                        , sess_data = :sess_data
                        , user = :user_id
                    WHERE
                        sess_id = :sess_id              
                ";

                $stmt = $this->db->prepare($sql);
                $stmt->bindParam(':location', $location);
                $stmt->bindParam(':ip', $ip);
                $stmt->bindParam(':user_agent', $_SERVER['HTTP_USER_AGENT']);
                $stmt->bindParam(':user_host', $_SERVER['REMOTE_HOST']);
                $stmt->bindParam(':user_lang', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
                $stmt->bindParam(':sess_data', $session_data);
                $stmt->bindParam(':user_id', $user_id);
                $stmt->bindParam(':sess_id', $session_id);
                $stmt->execute();
                return true;
            }
            catch (PDOException $e) {
                error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
                error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
                return false;
            }
        }
        $this->gc();
    }

    public function destroy($session_id) {
        try {
            $sql="
                DELETE FROM
                    ue_user_session
                WHERE
                    sess_id = :sess_id
            ";
            $stmt = $this->db->prepare($sql);
            $stmt->bindParam(':sess_id', $session_id);
            $stmt->execute();
            return true;
        }
        catch (PDOException $e) {
            error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
            return false;
        }
    }

    public function gc($max_lifetime) {
        try {
            $sql="
                DELETE FROM
                    ue_user_session
                WHERE
                    NOW() > expires
            ";
            $stmt = $this->db->prepare($sql);
            $stmt->execute();
            return true;
        }
        catch (PDOException $e) {
            error_log('Error reading the session data table in the session reading method.',3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Query with error: $sql",3,"C:\wamp\www\universal_empires\test_log.txt");
            error_log(" Reason given: $e->getMessage()",3,"C:\wamp\www\universal_empires\test_log.txt");
            return false;
        }
    }
}
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}？>

它由以下内容初始化:ini_set('session.use_only_cookies',1);

ini_set('session.use_only_cookies', 1);

$db_session_handler = new db_session_handler($db);
session_set_save_handler($db_session_handler, true);

if (session_start() === false ) {
    die('The Session Handler Is Broken!!!!');
}
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通过session_set_save_handler()的手册页阅读我无法发现任何可能解释我得到的错误的内容:

警告:在session_start():无法读取会话数据:在C的用户(/瓦帕/ TMP路径::C):\瓦帕\ WWW\universal_empires \库\在线路36上bootstrap.php中

该文件中的第36行是对session_start()的调用.

围绕我能找到的唯一修复的Gooogling特定于给定的框架.我需要知道的是导致session_start()失败的原因(从读取有关7.1 session_start()的更改返回false而不是在某些事情不正确时尝试进行操作.

我的猜测是7.1中的某些内容发生了变化,其中7.0可能允许继续进行,但在7.1中它更严格,无论问题是什么,并使session_start()返回false.

我已经清空了数据库中的会话表,并检查了存储基于文件的会话的位置.唯一存在的"基于文件"的会话文件是PHPMyAdmin.

有谁知道它在PHP 7.1中的犯规是什么,它不会在PHP 7.0中犯规？

Spa*_*nix 8

已找到罪魁祸首.事实证明,如果没有会话存在,session_start()不喜欢自定义会话处理程序的read方法返回false.如果其他人遇到类似的问题,如果你没有会话,那么read方法需要返回一个空字符串而不是false或null.

该解决方案被发现在http://php.net/manual/en/function.session-start.php#120589)我一直在寻找了一下session_set_save_handler(该手册页,没想到的解决方案实际上是在评论部分session_start()页面.

我不知道为什么对session_start()方法期望从自定义会话处理程序的read方法获取的内容进行了更改

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