我知道之前已经在这里询问过这类问题，但我尝试过提出的解决方案无济于事。我一直试图弄清楚这几天，但我真的很难过。救命！ 我有一个表单正在通过ajax处理php。在php文件中，我回应一个响应，然后应该填充页面上的div。在我的本地环境中，这可以按预期工作。但是，在我的实时服务器上，ajax不是回显字符串，而是返回index.php页面上的整个html。我无法弄清楚为什么会这样。代码：
的index.php：
<!-- index.php -->
<?php include("partials/header.php");
include("functions/register.php");
include("functions/invitefriend.php"); ?>
<!-- ...preceding html.... -->
<!-- Invite a friend form modal -->
<div class="modal fade" tabindex="-1" role="dialog" id="emailFriend" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Share with a friend or colleague via email: </h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form class="loginForm" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST" id="formRefer">
<div class="form-group">
<label for="fromName">Your full name: </label> <span id="fromNameFeedback"></span>
<input class="form-control" type="text" name="fromName" id="fromName" placeholder="Your full name" required autofocus="true">
</div>
<div class="form-group">
<label for="fromEmail">Your email: </label> <span id="fromEmailFeedback"></span>
<input class="form-control" type="email" name="fromEmail" id="fromEmail" placeholder="Your email" required>
</div>
<div class="form-group">
<label for="toName">Your friend's name: </label> <span id="toNameFeedback"></span>
<input class="form-control" type="text" name="toName" id="toName" placeholder="Your friend's name" required>
</div>
<div class="form-group">
<label for="toEmail">Your friend's email: </label> <span id="toEmailFeedback"></span>
<input class="form-control" type="email" name="toEmail" id="toEmail" placeholder="Your friend's email" required>
</div>
<div class="btn-group" data-toggle="buttons">
<p>This person is a: </p>
<label class="btn btn-info active">
<input type="radio" name="relationship" id="friend" value="friend" autocomplete="off" checked>Friend
</label>
<label class="btn btn-info">
<input type="radio" name="relationship" id="colleague" value="colleague" autocomplete="off">Colleague
</label>
</div>
<div>
<div id="message2" class="questions"><?php echo $message2; ?> </div>
</div>
<div>
<div id="message3" class="questions"> </div>
</div>
<div class="modal-footer">
<input class="btn btn-info loginlogin loginBtn" type="submit" name="send" id="referSubmitButton" value="Send" href="javascript:void(0)">
<button type="button" class="btn btn-dark" data-dismiss="modal">Cancel</button>
</div>
</form>
</div>
</div>
</div>
</div>
<?php include("partials/footer.php"); ?>
invitefriend.php：
<?php
//require PHPMailer and autoload
use PHPMailer\PHPMailer\PHPMailer;
require 'vendor/autoload.php';
//Invite a friend via email form handler
$fromName = strip_tags($_POST["fromName"]);
$fromEmail = strip_tags($_POST["fromEmail"]);
$toName = strip_tags($_POST["toName"]);
$toEmail = strip_tags($_POST["toEmail"]);
// $emailMsg = $_POST["emailMsg"];
$relationship = $_POST["relationship"];
$message2 = "";
if ($_SERVER["REQUEST_METHOD"] == "POST"){
//Validate form
$err = false;
//fromEmail cannot be empty or invalid
if(array_key_exists("fromEmail", $_POST) && PHPMailer::validateAddress($_POST["fromEmail"])){
$fromEmail = strip_tags($_POST["fromEmail"]);
} else {
$err = true;
echo "<h3>You must provide a valid email address for yourself.</h3>";
}
if(array_key_exists("toEmail", $_POST) && PHPMailer::validateAddress($_POST["toEmail"])){
$toEmail = strip_tags($_POST["toEmail"]);
} else {
$err = true;
echo "<h3>You must provide a valid email address for your friend or colleague.</h3>";
}
if(!$err){
// Insert emails into db (new table for referral addresses)
$query = "INSERT INTO invitees (`toName`, `toEmail`, `fromName`, `fromEmail`, `date`) VALUES ('".mysqli_real_escape_string($conn, $toName)."', '".mysqli_real_escape_string($conn, $toEmail)."', '".mysqli_real_escape_string($conn, $fromName)."', '".mysqli_real_escape_string($conn, $fromEmail)."', CURDATE())";
$result = mysqli_query($conn, $query);
//and send the email using PHPMailer
$mail = new PHPMailer();
//Server settings
$mail->SMTPDebug = 0;
$mail->isSMTP();
$mail->SMTPAuth = true;
$mail->SMTPSecure = 'tls';
$mail->Host = 'smtp.stackmail.com';
$mail->Username = 'invite@heal-the-nation.com';
$mail->Password = 'PMQP1RCngk';
$mail->Port = 587;
//Recipients
$mail->setFrom('invite@heal-the-nation.com', 'Heal the Nation');
$mail->addAddress($toEmail); // Add a recipient
$mail->addReplyTo($fromEmail, $fromName);
// $mail->addCC('cc@example.com');
//Add an image in the email body
$mail->AddEmbeddedImage('./img/HTN_Logo.png', 'HTN_Logo');
$msg = ''; //Many, many lines of an html email
//Content
$mail->isHTML(true);
$mail->Subject = 'An invitation to learn about Heal the Nation: The Healthcare Workers\' Network';
$mail->Body = $msg;
$mail->AltBody = strip_tags($msg);
if(!$mail->send()) {
echo "<h3 class='bg-danger text-info'>Unable to send invitation. Please try again.</h3><br>";
echo "Mailer Error: " . $mail->ErrorInfo;
//exit();
} else {
echo "<h3 class='bg-success text-info'>Invitation sent!</h3>";
//exit();
}
}
};
?>
invitefriend.js：
$(document).ready(function(){
var formRefer = $("#formRefer")
var fromName = $("#fromName").val();
var fromEmail = $("#fromEmail").val();
var toName = $("#toName").val();
var toEmail = $("#toEmail").val();
formRefer.submit(function(event){
event.preventDefault();
showSpinner();
disableButton();
var fromName = $("#fromName").val();
var fromEmail = $("#fromEmail").val();
var toName = $("#toName").val();
var toEmail = $("#toEmail").val();
var formData = $(formRefer).serialize();
var url = $(formRefer).attr('action');
$.ajax({
url:url,
data:formData,
type:'POST',
dataType:"text",
}).done(function(response){
console.log(response);
console.log(response.responseText);
if($.trim(response) == "<h3 class='bg-danger text-info'>Unable to send invitation. Please try again.</h3><br>"){
console.log("The response says unable to send invite....");
$("#message3").html(response);
} else if($.trim(response) == "<h3 class='bg-success text-info'>Invitation sent!</h3>") {
console.log("Success!!!");
$("#message3").html(response);
//Clear the form...
}).fail(function(data){
console.log(data);
console.log(data.responseText);
if (data.responseText !== '') {
$("#message3").text(data.responseText);
} else {
$("#message3").text('Oops! An error occurred.');
}
}); //end ajax request
}); //end formRefer.submit() function
}); //end document.ready function
所以在我的本地环境中，当我处理这个表单时，我的console.log（响应）给了我表单数据（fromName：John，fromEmail：john@john.com等）和console.log（ response.responseText）从php（“<h3 class='bg-danger text-info'>Unable to send invitation. Please try again.</h3>”或“<h3 class='bg-success text-info'>Invitation sent!</h3>”）给出适当的echo值，此responseText填充页面上的div。
但是，当我在我的实时服务器上尝试此操作时，它的行为会有所不同。 console.log（response）返回整个index.php html内容，console.log（response.responseText）返回'undefined'，页面上的div保持为空。为什么？？？？我知道表单确实是由php处理的，因为数据被插入数据库并发送电子邮件。所以一定是我的ajax。我在这里和其他地方尝试了许多建议，但没有一个有效。请帮忙！谢谢!!
答案 0 :(得分：0)
我终于明白了。这确实是我的PHP代码中的一个错误。原来我的文件路径到phpmailer'vendor / autoload'写得不正确（我需要写../vendor/autoload）。那是错误。一旦我修复了文件路径，一切都开始完美了！奇怪的是，错误报告不会简单地告诉我它找不到'vendor / autoload'。