用户的详细信息不显示从MySQL数据库

Question

我想从数据库中选择数据并显示在我的网站上登录的用户，但只有他的数据没有其他人当我把代码它给出了几个错误通知我不知道如何解决他们请帮助我。由于

错误注意按摩：

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 

Notice: Undefined index: username in C:\xampp\htdocs\mysql_login\user_details2.php on line 20 

Notice: Undefined index: name in C:\xampp\htdocs\mysql_login\user_details2.php on line 21 
Username Name 

这里是我的PHP代码：

<?php 
$con=mysqli_connect("localhost","root","123","login"); 
// Check connection 
if (mysqli_connect_errno()) 
    { 
    echo "Failed to connect to MySQL: " . mysqli_connect_error(); 
    } 

$result = mysqli_query($con,"SELECT * FROM users"); 

echo "<table border='1'> 
<tr> 
<th>Username</th> 
<th>Name</th> 
</tr>"; 

while($row = mysqli_fetch_array($result)) 
    { 
    echo "<tr>"; 
    echo "<td>" . $row['username'] . "</td>"; 
    echo "<td>" . $row['name'] . "</td>"; 
    echo "</tr>"; 
    } 
echo "</table>"; 

mysqli_close($con); 
?> 

Answer 1

尝试mysqli_fetch_assoc（$结果）或mysqli_fetch_array（$结果，MYSQL_ASSOC），而不是mysqli_fetch_array （$ result）