PHP 联系表问题 - 400 错误，看不到错误

Question

您好，我对此还比较陌生，我正在尝试使用我找到的模板创建一个带有联系表的网站。我已将其设置为 PHP 所能看到的最佳状态，但我不断收到 400 响应错误。我已经检查了模板代码并删除了明显的拼写错误，并尝试修复其他问题但无济于事。你能帮忙吗，因为我对 PHP 一点也不了解！

HTML形式：

<form id="contact-form" action="assets/contact.php" method="post">
    <div class="row">
        <div class="col-md-6">
            <div class="form-input mt-25">
                <label>Name</label>
                <div class="input-items default">
                    <input name="name" id="name" type="text" placeholder="Name">
                    <i class="lni lni-user"></i>
                </div>
            </div> <!-- form input -->
        </div>
        <div class="col-md-6">
            <div class="form-input mt-25">
                <label>Email</label>
                <div class="input-items default">
                    <input type="email" id="email" name="email" placeholder="Email">
                    <i class="lni lni-envelope"></i>
                </div>
            </div> <!-- form input -->
        </div>
        <div class="col-md-12">
            <div class="form-input mt-25">
                <label>Message</label>
                <div class="input-items default">
                    <textarea name="message" id="message" placeholder="Message"></textarea>
                    <i class="lni lni-pencil-alt"></i>
                </div>
            </div> <!-- form input -->
        </div>
        <p class="form-message"></p>
        <div class="col-md-12">
            <div class="form-input light-rounded-buttons mt-30">
                <button class="main-btn light-rounded-two" type="submit" name="submit">Send Message</button>
            </div> <!-- form input -->
        </div>
    </div> <!-- row -->
</form>

和 PHP (contact.php)

<?php

    // Only process POST reqeusts.
    if ($_SERVER["REQUEST_METHOD"] == "POST") {
        // Get the form fields and remove whitespace.
        $name = strip_tags(trim($_POST["name"]));
                $name = str_replace(array("\r","\n"),array(" "," "),$name);
        $email = filter_var(trim($_POST["email"]), FILTER_SANITIZE_EMAIL);
        $message = trim($_POST["message"]);

        // Check that data was sent to the mailer.
        if ( empty($name) OR empty($subject) OR empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
            // Set a 400 (bad request) response code and exit.
            http_response_code(400);
            echo "Please complete the form and try again.";
            exit;
        }

        // Set the recipient email address.
        // FIXME: Update this to your desired email address.
        $recipient = "Ienteredmyemailhere@myemail.com";

        // Set the email subject.
        $subject = "New contact from $name";

        // Build the email content.
        $email_content = "First Name: $name\n";
        $email_content .= "Email: $email\n\n";
        $email_content .= "Message:\n$message\n";

        // Build the email headers.
        $email_headers = "From: $name <$email>";

        // Send the email.
        if (mail($recipient, $subject, $email_content, $email_headers)) {
            // Set a 200 (okay) response code.
            http_response_code(200);
            echo "Thank You! Your message has been sent.";
        } else {
            // Set a 500 (internal server error) response code.
            http_response_code(500);
            echo "Oops! Something went wrong and we couldn't send your message.";
        }

    } else {
        // Not a POST request, set a 403 (forbidden) response code.
        http_response_code(403);
        echo "There was a problem with your submission, please try again.";
    }

?>

谢谢。我想这可能相对容易，我只是看不出错误发生在哪里。

Answer 1

        if ( empty($name) OR empty($subject) OR empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
        // Set a 400 (bad request) response code and exit.
              http_response_code(400);
              echo "Please complete the form and try again.";
              exit;
        }

在此代码中，您检查了 PHP 服务器未收到的 ($subject)。所以这个变量是空的，这个条件成立，你每次都会收到 400 条错误消息。您可以将 $subject 更改为 $email（您已将其用作存储收到的电子邮件的变量）以更正您的程序。

    if ( empty($name) OR empty($email) OR empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
        // Set a 400 (bad request) response code and exit.
        http_response_code(400);
        echo "Please complete the form and try again.";
        exit;
    }

希望这能解决您的问题。

PHP 联系表问题 - 400 错误，看不到错误

PHP Contact Form Issue - 400 error, can't see the fault

html

php

contact-form

http-status-code-400