Php 在子目录中使用时，所有表单值都为空

我在一个为客户制作的网站上有一个“联系我们”页面，我从主网站的子目录托管该页面。当有人从“联系我们”页面发送消息时，它会发送到网站所有者的电子邮件，但值为空。但是当我从根目录测试相同的两个页面时，它们工作得很好

下面是代码

HTML页面

<form id="main-contact-form" class="contact-form" name="contact-form" method="post" action="sendemail.php" role="form">
<div class="row">
    <div class="col-sm-5">
        <div class="form-group">
            <input name="fname" type="text" class="form-control" required="required" placeholder="First Name">
        </div>
        <div class="form-group">
            <input name="lname" type="text" class="form-control" required="required" placeholder="Last Name">
        </div>
        <div class="form-group">
            <input name="email" type="text" class="form-control" required="required" placeholder="Email address">
        </div>
        <div class="form-group">
            <button type="submit" class="btn btn-primary btn-lg">Send Message</button>
        </div>
    </div>
    <div class="col-sm-7">
        <textarea name="message" id="message" required="required" class="form-control" rows="8" placeholder="Message"></textarea>
    </div>
</div>
</form>

<?php
header('Content-type: application/json');
$status = array(
    'type'=>'success',
    'message'=>'Email sent!'
);

$fname= @trim(stripslashes($_POST['fname'])); 
$lname = @trim(stripslashes($_POST['lname'])); 
$name = $fname.' '.$lname;
$email = @trim(stripslashes($_POST['email'])); 
$message = @trim(stripslashes($_POST['message'])); 

$email_from = $email;
$email_to = 'my.email@gmail.com';

$body = 'Name: ' . $name . "\n\n" . 'Email: ' . $email . "\n\n" . 'Message: ' . $message;

$success = @mail($email_to, 'An email from website\'s form', $body, 'From: <'.$email_from.'>');

echo json_encode($status);
die;

发送消息

PHP文件

<form id="main-contact-form" class="contact-form" name="contact-form" method="post" action="sendemail.php" role="form">
<div class="row">
    <div class="col-sm-5">
        <div class="form-group">
            <input name="fname" type="text" class="form-control" required="required" placeholder="First Name">
        </div>
        <div class="form-group">
            <input name="lname" type="text" class="form-control" required="required" placeholder="Last Name">
        </div>
        <div class="form-group">
            <input name="email" type="text" class="form-control" required="required" placeholder="Email address">
        </div>
        <div class="form-group">
            <button type="submit" class="btn btn-primary btn-lg">Send Message</button>
        </div>
    </div>
    <div class="col-sm-7">
        <textarea name="message" id="message" required="required" class="form-control" rows="8" placeholder="Message"></textarea>
    </div>
</div>
</form>

<?php
header('Content-type: application/json');
$status = array(
    'type'=>'success',
    'message'=>'Email sent!'
);

$fname= @trim(stripslashes($_POST['fname'])); 
$lname = @trim(stripslashes($_POST['lname'])); 
$name = $fname.' '.$lname;
$email = @trim(stripslashes($_POST['email'])); 
$message = @trim(stripslashes($_POST['message'])); 

$email_from = $email;
$email_to = 'my.email@gmail.com';

$body = 'Name: ' . $name . "\n\n" . 'Email: ' . $email . "\n\n" . 'Message: ' . $message;

$success = @mail($email_to, 'An email from website\'s form', $body, 'From: <'.$email_from.'>');

echo json_encode($status);
die;

检查您的文件“main.js”并替换：

$.post($(this).attr(‘action’), function(data) {

为了

完整的“main.js”是：

是的，兄弟，@Dagon你这是什么意思？检查你的错误日志文件