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 {
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","C:\wamp\www\universal_empires\test_log.txt");
error_log(" Reason given: $e->getMessage()","C:\wamp\www\universal_empires\test_log.txt");
return false;
}
}
public function write($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.',"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,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.',"C:\wamp\www\universal_empires\test_log.txt");
error_log(" Query with error: $sql","C:\wamp\www\universal_empires\test_log.txt");
error_log(" Reason given: $e->getMessage()","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 $e) {
error_log('Error reading the session data table in the session reading method.',"C:\wamp\www\universal_empires\test_log.txt");
return false;
}
if (!isset($_SERVER['REDIRECT_URL'])) {
$location = 'UnkNown';
} else {
$location = $_SERVER['REDIRECT_URL'];
}
try {
$sql="
UPDATE
ue_user_session
SET
last_activity = Now(),expires = DATE_ADD(Now(),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.',"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 $e) {
error_log('Error reading the session data table in the session reading method.',"C:\wamp\www\universal_empires\test_log.txt");
return false;
}
}
public function gc($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.',"C:\wamp\www\universal_empires\test_log.txt");
return false;
}
}
}
？>
它的初衷是：
函数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!!!!');
}
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：
Warning: session_start(): Failed to read session data: user (path: c:/wamp/tmp) in C:\wamp\www\universal_empires\libs\bootstrap.PHP on line 36
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对时尝试进行操作.
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.
