请教从数据库取出值然后报错的问题。
第一段代码index.html
<html><br /><head><br /> <title>管理员登录</title><br /></head><br /><body><br /> <form action="active.php" method="POST"><br /> <table><br /> <tr><br /> <td>用户名：</td><br /> <td><input type="text" name="user"></td><br /> </tr><br /> <tr><br /> <td>密码：</td><br /> <td><input type="text" name="pass"></td><br /> </tr><br /> <tr><br /> <td rows="2"><input type="submit" value ="登录"></td><br /> </tr><br /> </table><br /> </form><br /></body><br /></html>
<?php<br /> $user=$_POST['user'];<br /> $pass=$_POST['pass']; <br /> $link=mysql_connect("localhost","root","");<br /> $db=mysql_select_db("blog",$link);<br /> mysql_query("set names utf8");<br /> $sql="select * from user where username='$user'";<br /> $result=mysql_query($sql);<br /><br /> while($row=mysql_fetch_row($result)){<br /> $username=$row['username'];//用单引号就是不行。<br /> $password=$row[2];<br /> }<br />echo $username;<br />echo "<hr>";<br />echo $password;<br />?>
![[웹 프런트엔드] Node.js 빠른 시작](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
