我是要旨的作者。该代码一直有效，直到
express-session开始强制签名的cookie并开始以其他方式实现它们。
我已更新要点，以使用最新版本的
express-session。为了方便起见，下面是要点的副本：
app.js：
var express = require('express'), app = express(), cookieParser = require('cookie-parser'), session = require('express-session'), RedisStore = require('connect-redis')(session);app.use(express.static(__dirname + '/public'));app.use(function(req, res, next) { if (~req.url.indexOf('favicon')) return res.send(404); next();});app.use(cookieParser());app.use(session({ store: new RedisStore({ // this is the default prefix used by redis-session-php prefix: 'session:php:' }), // use the default PHP session cookie name name: 'PHPSESSID', secret: 'node.js rules', resave: false, saveUninitialized: false}));app.use(function(req, res, next) { req.session.nodejs = 'Hello from node.js!'; res.send('<pre>' + JSON.stringify(req.session, null, ' ') + '</pre>');});app.listen(8080);app.php：
<?php// this must match the express-session `secret` in your Express appdefine('EXPRESS_SECRET', 'node.js rules');// ==== BEGIN express-session COMPATIBILITY ====// this id mutator function helps ensure we look up// the session using the right iddefine('REDIS_SESSION_ID_MUTATOR', 'express_mutator');function express_mutator($id) { if (substr($id, 0, 2) === "s:") $id = substr($id, 2); $dot_pos = strpos($id, "."); if ($dot_pos !== false) { $hmac_in = substr($id, $dot_pos + 1); $id = substr($id, 0, $dot_pos); } return $id;}// check for existing express-session cookie ...$sess_name = session_name();if (isset($_cookie[$sess_name])) { // here we have to manipulate the cookie data in order for // the lookup in redis to work correctly // since express-session forces signed cookies now, we have // to deal with that here ... if (substr($_cookie[$sess_name], 0, 2) === "s:") $_cookie[$sess_name] = substr($_cookie[$sess_name], 2); $dot_pos = strpos($_cookie[$sess_name], "."); if ($dot_pos !== false) { $hmac_in = substr($_cookie[$sess_name], $dot_pos + 1); $_cookie[$sess_name] = substr($_cookie[$sess_name], 0, $dot_pos); // https://github.com/tj/node-cookie-signature/blob/0aa4ec2fffa29753efe7661ef9fe7f8e5f0f4843/index.js#L20-L23 $hmac_calc = str_replace("=", "", base64_enpre(hash_hmac('sha256', $_cookie[$sess_name], EXPRESS_SECRET, true))); if ($hmac_calc !== $hmac_in) { // the cookie data has been tampered with, you can decide // how you want to handle this. for this example we will // just ignore the cookie and generate a new session ... unset($_cookie[$sess_name]); } }} else { // let PHP generate us a new id session_regenerate_id(); $sess_id = session_id(); $hmac = str_replace("=", "", base64_enpre(hash_hmac('sha256', $sess_id, EXPRESS_SECRET, true))); // format it according to the express-session signed cookie format session_id("s:$sess_id.$hmac");}// ==== END express-session COMPATIBILITY ====require('redis-session-php/redis-session.php');RedisSession::start();$_SESSION["php"] = "Hello from PHP";if (!isset($_SESSION["cookie"])) $_SESSION["cookie"] = array();echo "<pre>";echo json_enpre($_cookie, JSON_PRETTY_PRINT);echo json_enpre($_SESSION, JSON_PRETTY_PRINT);echo "</pre>";?>
