我有一个用户可以选择上传文件的表单，它会发送一封包含该文件作为附件的电子邮件。
我遇到的问题是，即使我没有选择要附加的任何文件，下面的AJAX警报也总是从PHP代码中提供The uploaded file is not a supported file type.消息。
if (data.error) {
alert(data.error.message);
}`
AJAX代码：
$(document).ready(function (e){
$("#main-contact-form").on('submit',(function(e){
e.preventDefault();
$('#sendingemail').fadeIn();
$.ajax({
url: "../sendemail.php",
type: "POST",
data: new FormData(this),
contentType: false,
cache: false,
processData: false,
success: function(data){
if (data.error) {
alert(data.error.message);
}
else{
$('#sendingemail').fadeOut();
$('#emailsent').fadeIn();
alert(data.message);
}
},
error: function(XHR,textStatus,errorThrown) {
console.log(data);
//alert("error");
alert(XHR.status);
alert(textStatus);
alert(errorThrown);
}
}
);
}));
});
PHP代码：
<?php
header('Content-type: application/json');
// WE SHOULD ASSUME THAT THE EMAIL WAS NOT SENT AT FIRST UNTIL WE KNOW MORE.
// WE ALSO ADD AN ATTACHMENT KEY TO OUR STATUS ARRAY TO INDICATE THE STATUS OF OUR ATTACHMENT:
$status = array(
'type' =>'Error',
'message' =>'Couldn\'t send the Email at this Time. Something went wrong',
'attachement' =>'Couldn\'t attach the uploaded File to the Email.'
);
//Added to deal with Files
require_once('PHPMailer/class.phpmailer.php');
if(isset($_FILES['uploaded_file'])){
//Get the uploaded file information
$name_of_uploaded_file =
basename($_FILES['uploaded_file']['name']);
//get the file extension of the file
$type_of_uploaded_file =
substr($name_of_uploaded_file,
strrpos($name_of_uploaded_file, '.') + 1);
$size_of_uploaded_file =
$_FILES["uploaded_file"]["size"]/1024;//size in KBs
//Settings
$max_allowed_file_size = 10000; // size in KB
$allowed_extensions = array("jpg", "jpeg", "gif", "bmp","png");
//Validations
if($size_of_uploaded_file > $max_allowed_file_size )
{
$status['type'] = 'Error';
$status['message'] = 'Error: Size of file should be less than ~10MB. The file you attempted to upload is too large. To reduce the size, open the file in an image editor and change the Image Size and resave the file.';
echo(json_encode($status));
exit;
}
//------ Validate the file extension -----
$allowed_ext = false;
for($i=0; $i<sizeof($allowed_extensions); $i++)
{
if(strcasecmp($allowed_extensions[$i],$type_of_uploaded_file) == 0)
{
$allowed_ext = true;
}
}
if(!$allowed_ext)
{
$status['type'] = 'Error';
$status['message'] = 'Error: The uploaded file is not a supported file type.';
echo(json_encode($status));
exit;
}
$upload_folder = "temp/";
$path_of_uploaded_file = $upload_folder . $name_of_uploaded_file;
$tmp_path = $_FILES["uploaded_file"]["tmp_name"];
if(is_uploaded_file($tmp_path))
{
if(!copy($tmp_path,$path_of_uploaded_file))
{
$status['type'] = 'Error';
$status['message'] = 'Error: Encountered an error while copying the uploaded file';
exit;
}
}
}
//--end
$name = @trim(stripslashes($_POST['name']));
$clientemail = @trim(stripslashes($_POST['email']));
$subject = @trim(stripslashes($_POST['subject']));
$message = @trim(stripslashes($_POST['message']));
$body = 'Name: ' . $name . "\n\n" . 'Email: ' . $clientemail . "\n\n" . 'Subject: ' . $subject . "\n\n" . 'Message: ' . $message;
$email = new PHPMailer();
$email->From = $clientemail;
$email->FromName = $name;
$email->Subject = $subject;
$email->Body = $body;
$email->AddAddress( 'root@localhost.com' ); //Send to this email
$email->isMail();
if(isset($_FILES['uploaded_file'])){
if($email->AddAttachment( $path_of_uploaded_file , $name_of_uploaded_file )){
$status['message'] = 'The Uploaded File was successfully attached to the Email.';
}
}
header("Content-Type: application/json; charset=utf-8", true);
// NOW, TRY TO SEND THE EMAIL ANYWAY:
try{
$success = $email->send();
$status['type'] = 'success';
$status['message'] = 'Thank you for contacting us. We will reply as soon as possible.';
}catch(Exception $e){
$status['type'] ='Error';
$status['message'] ='Couldn\'t send the Email at this Time. Something went wrong';
}
die(json_encode($status));
HTML：
<form id="main-contact-form" class="contact-form" name="contact-form" method="post" action="sendemail.php" enctype="multipart/form-data">
<div class="col-sm-5 col-sm-offset-1">
<div class="form-group">
<label>Name *</label>
<input type="text" name="name" class="form-control" required="required">
</div>
<div class="form-group">
<label>Email *</label>
<input type="email" name="email" class="form-control" required="required">
</div>
<div class="form-group">
<label>Phone</label>
<input type="number" class="form-control">
</div>
<div class="form-group">
<label>Company Name</label>
<input type="text" class="form-control">
</div>
</div>
<div class="col-sm-5">
<div class="form-group">
<label>Subject *</label>
<input type="text" name="subject" class="form-control" required="required">
</div>
<div class="form-group">
<label>Message *</label>
<textarea name="message" id="message" required="required" class="form-control" rows="8" style="height:125px"></textarea>
<label for='uploaded_file' style="margin-top:10px">Select A Photo To Upload:</label>
<input type="file" name="uploaded_file">
</div>
<div class="form-group">
<button type="submit" name="submit" class="btn btn-primary btn-lg" required="required">Submit Message</button>
</div>
</div>
</form>
答案 0 :(得分：1)
当你Array
(
[uploaded_file] => Array
(
[name] =>
[type] =>
[tmp_name] =>
[error] => 4
[size] => 0
)
)
时，你会发现，即使你没有附加文件，也会给你这个数组：
isset($_FILES['uploaded_file'])您不想检查$_FILES['uploaded_file']['error'] == 0，而是
!empty($_FILES['uploaded_file']['name'])或-1
编辑：
我很清楚，我的回答是解决您收到错误消息的评论“......即使我没有选择任何文件附加”。我的回答解释了为什么会发生这种情况。