Ajax错误：无法加载资源：服务器响应状态为500（内部服务器错误）

Question

我正在尝试制作一个ajax函数，该函数允许我的站点向我发送消息而无需刷新页面。 但由于某种原因我无法执行此操作，因为每次单击它时，都会在控制台中收到此错误：

加载资源失败：服务器响应状态为500（内部服务器错误）。

这是我的脚本：

$(function() {

var form = $('#ajax-contact');

var formMessages = $('#form-messages');


$(form).submit(function(event) {
    event.preventDefault();

    var formData = $(form).serialize();

    $.ajax({
        type: 'POST',
        url: $(form).attr('action'),
        data: formData
    }).done(function(response) {
        // Make sure that the formMessages div has the 'success' class.
        $(formMessages).removeClass('error');
        $(formMessages).addClass('success');

        // Set the message text.
        $(formMessages).text(response);

        // Clear the form.
        $('#name').val('');
        $('#email').val('');
        $('#message').val('');
    }).fail(function(data) {
        // Make sure that the formMessages div has the 'error' class.
        $(formMessages).removeClass('success');
        $(formMessages).addClass('error');

        // Set the message text.
        if (data.responseText !== '') {
            $(formMessages).text(data.responseText);
        } else {
            $(formMessages).text('Oops! An error occured and your message could not be sent.');
        }
    });
});


});

这是我的PHP文件：

<?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($name) OR empty($message) OR !filter_var($email, FILTER_VALIDATE_EMAIL)) {
        // Set a 400 (bad request) response code and exit.
        http_response_code(400);
        echo "All fields must be filled.";
        exit;
    }

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

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

    // Build the email content.
    $email_content = "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 "Something went wrong.";
    }

} 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.";
}

?>

Answer 1

第一次猜测

邮件函数返回false，您将获得Error 500页面。

尝试删除http_response_code(500);

如果结果没有改变。 检查Serverlogs 。

在这种情况下，添加error_reporting(E_ALL); 第二行可能有所帮助，具体取决于您的服务器配置。

Answer 2

您需要通过在每一行中逐一放置die('test')来开始调试...

从第一行开始死亡...如果您在控制台中得到死亡按摩，然后从该行中删除死亡并放入下一行...按照此调试步骤进行操作，直到您找到php错误行..因为我肯定必须有代码中的一些PHP错误..这将导致500个服务器错误...