Question

我已经创建了一个简单的HTML登录页面。我已经创建了一个PHP文件来将数据传输到MySQL数据库（使用MySQL Workbench 8.0）但是，当我单击“提交”时，将打开一个页面，其中包含来自我的PHP文件的一些代码，并且没有数据传输到我的数据库中。如何将数据从“登录”页面传输到MYSQL数据库？

我已将PHP文件保存在C：//

登录页面代码：

<html>
   <head>
         <title>Login</title>
  </head>
   <body>
       <form action="/Test1.php">
        Username:<br>
        <input type="text" value="username"><br>
        Password:<br>
        <input type="text" value="password"><br>
        <input type="submit" value="submit"><br>
        </form>
    </body>
</html>

PHP代码：

<html>
<? php
$username = filter_input(INPUT_POST, 'username');
$password = filter_input(INPUT_POST, 'password');
if (!empty($username)){
if (!empty($password)){
    $host = "localhost:3306";
    $dbusername = "root";
    $dbpassword = "";
    $dbname = "login";

    // Create Connection
    $conn = new mysqli ($host, $dbusername, $dbpassword, $dbname);
    if (mysql_connect_error()){
        die ( 'Connect Error ('.mysqli_connect_errno().')'.mysqli_connect_error());
    }
    else {
        $sql = "INSERT INTO login.user (username, password)
        values ('$username', '$password')";
        if ($conn->query($sql)){
            echo "New record is inserted successfully";
        }
        else {
            echo "Error:".$sql."<br>".$conn->error;
        }
        $conn->close();
}
}
else { 
echo "Password should not be empty";
die ();
}

else {
    echo "Username should not be empty";
    die();
}

?>
</html>

我希望将HTML文件中的数据输入到MYSQL数据库中，但是会打开一个新页面：

query($sql)){ echo "New record is inserted successfully"; } else { echo "Error:".$sql."
".$conn->error; } $conn->close(); } } else { echo "Password should not be empty"; die (); } else { echo "Username should not be empty"; die(); } ?>

Answer 1

尝试一下：

<html>
<?php
$username = filter_input(INPUT_POST, 'username');
$password = filter_input(INPUT_POST, 'password');

if (empty($username)) {
    echo 'Username should not be empty';
    exit;
}
if (empty($password)) {
    echo 'Password should not be empty';
    exit;
}

$host = 'localhost:3306';
$dbusername = '';
$dbpassword = '';
$dbname = '';

// Create Connection
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

try {
    $connection = new mysqli($host, $dbusername, $dbpassword, $dbname);
} catch (Exception $exception) {
    exit('Error connecting to database');
}
$connection->set_charset('utf8mb4');

try {
    $statement = $connection->prepare("INSERT INTO login.user (username, password) values (?, ?)");
    $statement->bind_param('ss', $username, $password);
    $statement->execute();
    $statement->close();

    echo 'New record is inserted successfully';
} catch (Exception $exception) {
    echo 'Error: ' . $exception->getMessage();
}

$connection->close();

?>
</html>

将登录页面中的数据提交到MySQL数据库的代码

1 个答案: