寻找特殊问题的帮助。每次我停止并重新启动服务器时，都会收到以下消息：
Jim@Jim-PC MINGW64 ~/nodeProjects/express-locallibrary-tutorial
$ npm start
> express-locallibrary-tutorial@0.0.0 start C:\Users\Jim\nodeProjects\express-locallibrary-tutorial
> node ./bin/www
Port 3300 is already in use
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! express-locallibrary-tutorial@0.0.0 start: `node ./bin/www`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the express-locallibrary-tutorial@0.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! …我对使用单引号和双引号、echo 和 $message 感到困惑。=
我不知道如何在 $message 中编写 foreach 循环来输出购物车项目。thead 部分有效，但 tbody 区域有缺陷。任何帮助表示赞赏。
<?php
session_start();
// Initialize variables
$name = $telephone = $email = $jim_gmail = '';
// Post data from @quote-form.html.php
if( $_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action'] ) ) {
// Sanitize and post data to variables
$company = sanitize( $_POST['company'] );
$name = sanitize( $_POST['name'] );
$telephone = sanitize( $_POST['telephone'] );
$email = sanitize( $_POST['email'] );
// Assign $name value to SESSION variable for use @thankyou.html.php
$_SESSION['name'] = $name; …