删除不工作

Question

我有两页，第一显示了MySQL数据库从某一特定领域的所有项目数据库条目：

DatabaseEntries.php

<?php 
include('connect.php'); 

$result = mysqli_query($db, "SELECT * FROM names") 
    or die(mysqli_error($db)); 


echo "<table border='1' cellpadding='10'>"; 
echo "<tr> <th>Firstname</th> <th>lastname</th> <th>Email</th><th></th> "; 


while($row = mysqli_fetch_array($result)) { 

    // echo out the contents of each row into a table 

    echo "<tr>"; 
    echo '<td>' . $row['firstname'] . '</td>'; 
    echo '<td>' . $row['lastname'] . '</td>'; 
    echo '<td>' . $row['email'] . '</td>'; 
    echo '<td><a href="delete.php?email=' . $row['email'] . '">Delete</a></td>'; 
    echo "</tr>"; 

} 
?> 

第二页包含删除功能：

Delete.php

<?php 

include('connect.php'); 

// check if the 'id' variable is set in URL, and check that it is valid 
if (isset($_GET['email'])) 
{ 
// get id value 
$email = $_GET['email']; 

// delete the entry 
$result = mysqli_query($db, "DELETE FROM names WHERE email=$email") 
or die(mysqli_error($db)); 

// redirect back to the view page 
header("Location: DatabaseEntries.php"); 
} 
else 
// if id isn't set, or isn't valid, redirect back to view page 
{ 
header("Location: Error.php"); 
} 

?> 

我在尝试从数据库中删除项目时出现以下错误：

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '@gmail.com' at line 1 

谁能告诉我为什么？以及如何解决它？

感谢

Answer 1

添加quotes围绕$email

DELETE FROM names WHERE email='$email' 

您有在附近的删除命令** $电子邮件**错误