我搜索了谷歌，我找到的答案都没有帮助我。我试图在php中使用函数move_uploaded_file，所有我得到这些错误：
Notice: Undefined index: file in /Applications/XAMPP/xamppfiles/htdocs/photos.php on line 53
Notice: Undefined index: file in /Applications/XAMPP/xamppfiles/htdocs/photos.php on line 57
当我使用此代码时：
<?php
ini_set('display_errors',1);
error_reporting(E_ALL);
if (!empty($_POST['firstName']) ) {
$firstname = htmlentities($_POST['firstName']);
echo $firstName;
} elseif (isset($_POST['lastName']) ) {
$lastname = htmlentities($_POST['lastName']);
echo $lastName;
}
if (isset($_POST['userId']) ) {
$userID = htmlentities($_POST['userId']);
echo $userId;
}
$target_dir = "wp-content/uploads/2015/02";
if(!file_exists($target_dir))
{
//chdir($target_dir);
mkdir($target_dir, 0777, true);
}
$target_dir = $target_dir . "/" . basename($_FILES["file"]["name"]);
$moveResult = (move_uploaded_file($_FILES["file"]["tmp_name"], $target_dir)) ;
if ($moveResult == true) {
echo json_encode([
"Message" => "The file ". basename($_FILES["file"]["name"]). " has been uploaded.",
"Status" => "OK",
"userId" => $_REQUEST["userId"]
]);
} else {
if (isset($_REQUEST['userId']) ) {
$user = $_REQUEST['userId'];
}
echo json_encode([
// echo filename;
"Message" => "Sorry, there was an error uploading your file.",
"Status" => "Error",
//"userId" => $user,
]);
}
?>
或者我在使用此代码时始终返回false：
<?php
if (!empty($_POST['firstName']) ) {
$firstname = htmlentities($_POST['firstName']);
echo $firstName;
} elseif (isset($_POST['lastName']) ) {
$lastname = htmlentities($_POST['lastName']);
echo $lastName;
}
if (isset($_POST['userId']) ) {
$userID = htmlentities($_POST['userId']);
echo $userId;
}
$target_dir = "wp-content/uploads/2015/02";
if(!file_exists($target_dir))
{
mkdir($target_dir, 0777, true);
}
$target_dir = $target_dir . "/" . basename("filename");
$moveResult = (move_uploaded_file('filename', $target_dir)) ;
if ($moveResult == true) {
echo json_encode([
"Message" => "The file ". basename($_FILES["filename"]). " has been uploaded.",
"Status" => "OK",
"userId" => $_REQUEST["userId"]
]);
} else {
if (isset($_REQUEST['userId']) ) {
$user = $_REQUEST['userId'];
}
echo json_encode([
// echo filename;
"Message" => "Sorry, there was an error uploading your file.",
"Status" => "Error",
//"userId" => $user,
]);
}
?>
PS我已经尝试过将代码显示我的错误，但它没有报告任何内容。
我正在使用它为我的iOS应用程序制作服务器，这是我的快速代码：
import UIKit
class photogetupload: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
@IBOutlet weak var myImageView: UIImageView!
@IBOutlet weak var myActivityIndicator: UIActivityIndicatorView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func uploadButtonTapped(sender: AnyObject) {
myImageUploadRequest()
}
@IBAction func selectPhotoButtonTapped(sender: AnyObject) {
var myPickerController = UIImagePickerController()
myPickerController.delegate = self;
myPickerController.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.presentViewController(myPickerController, animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject])
{
myImageView.image = info[UIImagePickerControllerOriginalImage] as? UIImage
self.dismissViewControllerAnimated(true, completion: nil)
}
func myImageUploadRequest()
{
let myUrl = NSURL(string: "http://localhost:490/photos.php");
let request = NSMutableURLRequest(URL:myUrl!);
request.HTTPMethod = "POST";
let param = [
"firstName" : "Nathan",
"lastName" : "Huns",
"userId" : "9"
]
let boundary = generateBoundaryString()
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
let imageData = UIImageJPEGRepresentation(myImageView.image, 1)
if(imageData==nil) { return; }
request.HTTPBody = createBodyWithParameters(param, filePathKey: "file", imageDataKey: imageData, boundary: boundary)
myActivityIndicator.startAnimating();
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil {
println("error=\(error)")
return
}
// You can print out response object
println("******* response = \(response)")
// Print out reponse body
let responseString = NSString(data: data, encoding: NSUTF8StringEncoding)
println("****** response data = \(responseString!)")
dispatch_async(dispatch_get_main_queue(),{
self.myActivityIndicator.stopAnimating()
self.myImageView.image = nil;
});
}
task.resume()
}
func createBodyWithParameters(parameters: [String: String]?, filePathKey: String?, imageDataKey: NSData, boundary: String) -> NSData {
var body = NSMutableData();
if parameters != nil {
for (key, value) in parameters! {
body.appendString("–-\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
body.appendString("\(value)\r\n")
}
}
let filename = "user--profile.jpg"
let mimetype = "image/jpg"
body.appendString("–-\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename)\"\r\n")
body.appendString("Content-Type: \(mimetype)\r\n\r\n")
body.appendData(imageDataKey)
body.appendString("\r\n")
body.appendString("–-\(boundary)–-\r\n")
return body
}
func generateBoundaryString() -> String {
return "Boundary-\(NSUUID().UUIDString)"
}
}
extension NSMutableData {
func appendString(string: String) {
let data = string.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
appendData(data!)
}
}
我没有收到任何错误，这就是它记录的内容
******* response = <NSHTTPURLResponse: 0x7f8f485a8e60> { URL: http://localhost:490/photos.php } { status code: 200, headers {
Connection = "Keep-Alive";
"Content-Length" = 77;
"Content-Type" = "text/html; charset=UTF-8";
Date = "Wed, 01 Jul 2015 16:54:31 GMT";
"Keep-Alive" = "timeout=5, max=100";
Server = "Apache/2.4.12 (Unix) OpenSSL/1.0.1m PHP/5.6.8 mod_perl/2.0.8-dev Perl/v5.16.3";
"X-Powered-By" = "PHP/5.6.8";
} }
****** response data = {"Message":"Sorry, there was an error uploading your file.","Status":"Error"}
任何解决方案？ 谢谢！
答案 0 :(得分：0)
* First of all make sure that your folder is having permission for read and write
* Secondly input type="file" name="file" size="50
check size of input and change it accordingly.
您的代码正常运行，请确保以上两点
<head>
<title>A simple example of uploading a file using PHP script</title>
</head>
<body>
<b>Simple example of uploading a file</b><br />
Choose a file to be uploaded<br />
<form action="upload_file.php" method="post" enctype="multipart/form-data">
<input type="file" name="file" size="500" />
<br />
<input type="submit" value="Upload" />
</form>
</body>
现在在upload_file.php中确保$ target_dir具有正确的文件夹路径来上传文件
enter code here
<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);
if (!empty($_POST['firstName'])) {
$firstname = htmlentities($_POST['firstName']);
echo $firstName;
} elseif (isset($_POST['lastName'])) {
$lastname = htmlentities($_POST['lastName']);
echo $lastName;
}
if (isset($_POST['userId'])) {
$userID = htmlentities($_POST['userId']);
echo $userId;
}
$target_dir = "C:/xampp/htdocs/test/";
if (!file_exists($target_dir)) {
//chdir($target_dir);
mkdir($target_dir, 0777, true);
}
$target_dir = $target_dir . "/" . basename($_FILES["file"]["name"]);
$moveResult = (move_uploaded_file($_FILES["file"]["tmp_name"], $target_dir));
if ($moveResult == true) {
echo json_encode([
"Message" => "The file " . basename($_FILES["file"]["name"]) . " has been uploaded.",
"Status" => "OK",
"userId" => $_REQUEST["userId"]
]);
} else {
if (isset($_REQUEST['userId'])) {
$user = $_REQUEST['userId'];
}
echo json_encode([
// echo filename;
"Message" => "Sorry, there was an error uploading your file.",
"Status" => "Error",
//"userId" => $user,
]);
}
?>