我似乎已经尝试过在这个特定主题上找到的每个StackOverflow（并且很多），但是大多数人忘记了form标签中的enctype之类的东西。我仍在发送电子邮件，只是没有附加任何文件。
提交表单时，我的$_FILES数组似乎没有被填充。以下代码使用提交的字段数据发送HTML电子邮件，但没有附件。
这是表单提交输入数据但没有附件的日志中的最新错误：
[24-Jan-2020 22:06:33 UTC] PHP Warning: count(): Parameter must be an array or an object that implements Countable in *******/public_html/rtform/contact.php on line 89
我已经在下面的代码中指出了89行。
这是表单的开头和结尾，文件输入位于底部（表单的其余部分太长，无法在此处包含整个内容：
<form id="contact-form" method="POST" action="contact.php" role="form" enctype="multipart/form-data">
<div class="controls">
<!-- the middle of the form here -->
<div class="row">
<h3 class="form_title">Upload Additional Supporting Documents</h3>
<div class="col-lg-12">
<label for="attachments[]">Select one or more files:
<input name="attachments[]" type="file" multiple="multiple">
</label>
</div>
</div>
<hr/>
<div class="form-group">
<div class="g-recaptcha" data-sitekey="**************************************" data-callback="verifyRecaptchaCallback" data-expired-callback="expiredRecaptchaCallback"></div>
<input class="form-control d-none" data-recaptcha="true" required data-error="Please complete the Captcha">
<div class="help-block with-errors"></div>
</div>
<p><span class="red">Fields marked with * denotes a required field.</span></p>
<input type="submit" class="btn btn-success btn-send" value="Submit Order">
<div class="messages"></div>
</div><!-- end .controls -->
</form>
我的表单处理PHP文件很长，但可能需要包含所有内容，所以：
<?php
// error_reporting(E_ALL); ini_set('display_errors',1);
// Import PHPMailer classes into the global namespace
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
require 'includes/phpmailer/src/Exception.php';
require 'includes/phpmailer/src/PHPMailer.php';
// Require ReCaptcha class
require('recaptcha-master/src/autoload.php');
// ReCaptch Secret
$recaptchaSecret = *******************************;
/*******************************************************
*
* Here I have a long array with all of the input names and variables which I use for
* the logic below for my html email template(which works great). Shouldn't be necessary
* for this problem,so I'm excluding it.
*
*******************************************************/
// Instantiation and passing `true` enables exceptions
$mail = new PHPMailer(true);
try {
if ( !empty($_POST) ) {
$msg = ''; // To be used for dynamic messaging
// ReCaptcha
// Validate the ReCaptcha,if something is wrong,we throw an Exception,// i.e. code stops executing and goes to catch() block
if (!isset($_POST['g-recaptcha-response'])) {
throw new \Exception('ReCaptcha is not set.');
}
$recaptcha = new \ReCaptcha\ReCaptcha($recaptchaSecret,new \ReCaptcha\RequestMethod\CurlPost());
// we validate the ReCaptcha field together with the user's IP address
$response = $recaptcha->verify($_POST['g-recaptcha-response'],$_SERVER['REMOTE_ADDR']);
if (!$response->isSuccess()) {
throw new \Exception('ReCaptcha was not validated.');
}
$requestorEmail = "";
//Make sure the address they provided is valid before trying to use it
if (array_key_exists('requestoremail',$_POST) && PHPMailer::validateAddress($_POST['requestoremail'])) {
$requestorEmail = $_POST['requestoremail'];
} else {
$msg = 'Error: invalid requestor email address provided';
throw new \Exception('Requestor email,' . $requestorEmail . ',is not a valid email address.');
}
//Recipients
$mail->setfrom('senderemail@email.com','Sender');
$mail->addAddress('recipientemail@email.com','Recipient'); // Add a recipient
$mail->addAddress($requestorEmail,'Requestor'); // Name is optional
$mail->addReplyTo('replytoemail@email.com','Reply To Email');
/*************************************
*
* The attachment-related stuff:
*
*************************************/
$maxSize = 2 * 1024 * 1024; // 2 MB
$fileTypes = array('text/plain','application/pdf','application/msword','application/rtf','application/vnd.openxmlformats-officedocument.wordprocessingml.document'); // allowed mime-types
// Passing these variables to my jQuery ajax request at the bottom of this file to try to get some helpful info
$theFiles = $_FILES;
$filesCount = count($_FILES['attachments']['tmp_name']);
if (isset($_FILES)) {
//Attach multiple files one by one
//******************** The line below is line 89 ********************/
for ($ct = 0; $ct < count($_FILES['attachments']['tmp_name']); $ct++) {
$uploadfile = tempnam(sys_get_temp_dir(),hash('sha256',$_FILES['attachments']['name'][$ct]));
$filename = $_FILES['attachments']['name'][$ct];
$filesize = $_FILES['attachments']['size'][$ct];
$filemime = mime_content_type($uploadfile);
// Check $_FILES['upfile']['error'] value.
switch ($_FILES['attachments']['error'][$ct]) {
case UPLOAD_ERR_OK:
break;
case UPLOAD_ERR_NO_FILE:
throw new RuntimeException('No file sent.');
case UPLOAD_ERR_INI_SIZE:
case UPLOAD_ERR_FORM_SIZE:
throw new RuntimeException('Exceeded filesize limit.');
default:
throw new RuntimeException('Unknown errors.');
}
try {
if (in_array($filemime,$fileTypes)){
if ($filesize <= $maxSize) {
if (move_uploaded_file($_FILES['attachments']['tmp_name'][$ct],$uploadfile)) {
$mail->addAttachment($uploadfile,$filename);
} else {
$msg .= 'Failed to move file to ' . $uploadfile;
throw new \Exception('Failed to move file to ' . $uploadfile);
}
}
else {
$msg = "File[s] are too large. They must each be less than or equal to 2MB.";
throw new \Exception('File[s] are too large. They must each be less than or equal to 2MB.');
}
}
else {
$msg = "File[s] must only be of these types: .txt,.rtf,.pdf,.doc,.docx. Please try again.";
throw new \Exception('File[s] must only be of these types: .txt,.docx. Please try again.');
}
}
catch (Exception $e) {
$responseArray = array('type' => 'danger','message' => $msg); // or $e->getMessage()
}
}
}
else {
$msg = "No file added.";
throw new \Exception('No file added.');
}
// Get template file contents
$template = file_get_contents("email-template.html");
/*************************************************************************
*
* This is constructing my email html template with input data
*
**************************************************************************/
// Loop $_POST content,compare to $fields array,and include/replace if not empty
foreach($_POST as $key => $value) {
// Create a generic row to use for each
$value_row = "<li>$fields[$key]: $value</li>";
if ( !empty( $value ) ) {
// Check each group's first member and insert/replace appropriate title string
if( $key == "casenumber" ) {
$value_row = "<h2>General Information</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$value_row,$template);
}
elseif( $key == "client-fullname" ) {
$value_row = "</ul><h2>Client/Applicant</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "employer-fullname" ) {
$value_row = "</ul><h2>Employer/Insured</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "requestor-attorney" ) {
$value_row = "</ul><h2>Requestor</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "billingcarrier" ) {
$value_row = "</ul><h2>Billing Information</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "caseplantiff" ) {
$value_row = "</ul><h2>Case Caption</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "oclattorneyname" ) {
$value_row = "</ul><h2>Opposing Counsel</h2>\n<ul style='list-style:none;'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location1facility" ) {
$value_row = "</ul><h2>Delivery Instructions</h2><h3>Location 1</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location2facility" ) {
$value_row = "</ul><h3>Location 2</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location3facility" ) {
$value_row = "</ul><h3>Location 3</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location4facility" ) {
$value_row = "</ul><h3>Location 4</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location5facility" ) {
$value_row = "</ul><h3>Location 5</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location6facility" ) {
$value_row = "</ul><h3>Location 6</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location7facility" ) {
$value_row = "</ul><h3>Location 7</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location8facility" ) {
$value_row = "</ul><h3>Location 8</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location9facility" ) {
$value_row = "</ul><h3>Location 9</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
elseif( $key == "location10facility" ) {
$value_row = "</ul><h3>Location 10</h3>\n<ul style='list-style:none;' class='location-list'><li>$fields[$key]: $value</li>";
$template = str_replace('{{ '.$key.' }}',$template);
}
else {
$template = str_replace('{{ '.$key.' }}',$template);
}
}
else {
$template = str_replace('{{ '.$key.' }}','',$template);
}
}
// Content
$mail->isHTML(true); // Set email format to HTML
$mail->Subject = 'Order Form Submission from Real Time Records Website';
$mail->Body = $template;
$mail->send();
// Generic success message
$msg = 'Your order has been received successfully. We will contact you shortly. Please contact us if you have any questions.';
$responseArray = array('type' => 'success','message' => $msg,'files' => json_encode($theFiles),'number-of-files' => "$filesCount");
} // end if( !empty( $_POST ) )
} catch (Exception $e) {
// Generic error message
$msg = 'There was an error while submitting the form. Please try again later';
$responseArray = array('type' => 'danger','message' => $msg); // or $e->getMessage()
// echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}
// This encodes the output message(with some of those attachment details) for the jQuery ajax request to pickup
if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
$encoded = json_encode($responseArray);
header('Content-Type: application/json');
echo $encoded;
} else {
echo $responseArray['message'];
}
我的jQuery实际上只是显示传递的错误或成功消息，尽管我已经从$_FILES传递了一些信息来查看它是否被填充，但不是。
发出ajax请求后，我在响应中看到的与附件有关的接收数据是：
files = '[]','number-of-files' = '0'
任何具有PHPMailer经验的人都可以看到我在做什么错吗？
编辑x2
根据Synchro的回答，这是我更新的jQuery。它正在从表单中获取文件，并将多个文件正确地附加到FormData对象，但是php $_FILES对象仅计数/显示一个文件（当有两个文件时），并且不附加任何文件到已发送的电子邮件中：
$(function () {
window.verifyRecaptchaCallback = function (response) {
$('input[data-recaptcha]').val(response).trigger('change');
}
window.expiredRecaptchaCallback = function () {
$('input[data-recaptcha]').val("").trigger('change');
}
$('#contact-form').validator();
$('#contact-form').on('submit',function (e) {
if (!e.isDefaultPrevented()) {
var url = "contact.php";
const theForm = document.getElementById('contact-form');
var fd = new FormData(theForm);
var files = $("#file_attachments").prop('files');
for (var i = 0; i < files.length; i++) {
fd.append("attachments",files[i]);
console.log("File #"+(i+1)+" attached: "+files[i]);
}
$.ajax({
type: "POST",url: url,data: fd,processData: false,contentType: false,success: function(data) {
var messageAlert = 'alert-' + data.type;
var messageText = data.message;
var messageFiles = data.files;
var messageFilesCount = data.numberOfFiles
var alertBox = '<div class="alert ' + messageAlert + ' alert-dismissable"><button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>' + messageText + '</div><div>Number of Files: ' + messageFilesCount + ' - ' + messageFiles + '</div>';
if (messageAlert && messageText) {
$('#contact-form').find('.messages').html(alertBox);
$('#contact-form')[0].reset();
grecaptcha.reset();
}
},error: function(data) {
//this is going to happen when you send something different from a 200 OK HTTP
alert('Ooops,something happened: ' + data.message);
}
});
return false;
}
})
});