注意:未定义变量:“"中的 _SESSION在第 9 行

2021-12-26 00:00:00 error-handling php

这是我的php代码:

<?php include("inc/incfiles/header.inc.php")?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Member Index</title>
<link href="css/main.css" rel="stylesheet" type="text/css" />
</head>
<body>
<h1>Welcome <?php echo ($_SESSION['SESS_fname']);?></h1>
<a href="member-profile.php">My Profile</a> | <a href="logout.php">Logout</a>
<p>This is a password protected area only accessible to members. </p>
</body>
</html>

我知道代码有问题，但不知道如何修复.我的错误是:注意:未定义变量:_SESSION in C:xampphtdocsSmashermember-index.php 第 9 行"

I know something I wrong with the code but I don't know how to fix it. My error says: "Notice: Undefined variable: _SESSION in C:xampphtdocsSmashermember-index.php on line 9"

我该如何修复错误，让它显示用户的名字?mySQL 上的数据库表中的第一个名称称为 fname.

How can I fix the error so it will say the user's first name? The first name in the database table on mySQL is called fname.

推荐答案

添加

session_start();

在任何 HTML 之前的页面开头

at the beginning of your page before any HTML

你会有类似的东西:

<?php session_start(); include("inc/incfiles/header.inc.php")?> <html> <head> <meta http-equiv="Content-Type" conte...

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