Visual Basic - Upload file to PHP webpage - php

Question

I'm trying to upload an image file to a PHP file on a web server.
On VB.NET ->
My.Computer.Network.UploadFile(tempImageLocation, "website.com/upload.php")
tempImageLocation is a location on the harddrive where the image is located. The image is located on the harddrive where I specify it.
On PHP ->
$image = $_FILES['uploads']['name'];
I don't understand, because it is loading the page - but PHP can't find the file under 'uploads'

Answer 1

Google brought me here while I was searching for the same question. Thanks people it gave me the idea, and with a little knowledge of PHP, I've achieved it. I know its an old question but still I'm going to share my code so it could help people in future..
VB:
My.Computer.Network.UploadFile("e:\file1.jpg", "http://www.mysite.com/upl/upl.php")
PHP:
move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]);
and don't forget to give the upload folder the appropriate permissions.

Answer 2

I know, is old.. but here is solution work to me:
Private Sub HttpUploadFile(
ByVal uri As String,
ByVal filePath As String,
ByVal fileParameterName As String,
ByVal contentType As String)
Dim myFile As New FileInfo(filePath)
Dim sizeInBytes As Long = myFile.Length
Dim boundary As String = "---------------------------" & DateTime.Now.Ticks.ToString("x")
Dim newLine As String = System.Environment.NewLine
Dim boundaryBytes As Byte() = Encoding.ASCII.GetBytes(newLine & "--" & boundary & newLine)
Dim request As Net.HttpWebRequest = Net.WebRequest.Create(uri)
request.ContentType = "multipart/form-data; boundary=" & boundary
request.Method = "POST"
request.KeepAlive = True
'request.Credentials = Net.CredentialCache.DefaultCredentials
Using requestStream As IO.Stream = request.GetRequestStream()
Dim formDataTemplate As String = "Content-Disposition: form-data; name=""{0}""{1}{1}{2}"
requestStream.Write(boundaryBytes, 0, boundaryBytes.Length)
Dim headerTemplate As String = "Content-Disposition: form-data; name=""{0}""; filename=""{1}""{2}Content-Type: {3};"
Dim header As String = String.Format(headerTemplate, fileParameterName, filePath, newLine, contentType)
header = header & vbNewLine & "Content-Length: " & sizeInBytes.ToString & vbNewLine
header = header & "Expect: 100-continue" & vbNewLine & vbNewLine
'MsgBox(header)
Debug.Print(header)
Dim headerBytes As Byte() = Encoding.UTF8.GetBytes(header)
requestStream.Write(headerBytes, 0, header.Length)
Using fileStream As New IO.FileStream(filePath, IO.FileMode.Open, IO.FileAccess.Read)
Dim buffer(4096) As Byte
Dim bytesRead As Int32 = fileStream.Read(buffer, 0, buffer.Length)
Do While (bytesRead > 0)
requestStream.Write(buffer, 0, bytesRead)
bytesRead = fileStream.Read(buffer, 0, buffer.Length)
Loop
End Using
Dim trailer As Byte() = Encoding.ASCII.GetBytes(newLine & "--" + boundary + "--" & newLine)
requestStream.Write(trailer, 0, trailer.Length)
requestStream.Close()
End Using
Dim response As Net.WebResponse = Nothing
Try
response = request.GetResponse()
Using responseStream As IO.Stream = response.GetResponseStream()
Using responseReader As New IO.StreamReader(responseStream)
Dim responseText = responseReader.ReadToEnd()
Debug.Print(responseText)
End Using
End Using
Catch exception As Net.WebException
response = exception.Response
If (response IsNot Nothing) Then
Using reader As New IO.StreamReader(response.GetResponseStream())
Dim responseText = reader.ReadToEnd()
Diagnostics.Debug.Write(responseText)
End Using
response.Close()
End If
Finally
request = Nothing
End Try
End Sub
Using:
HttpUploadFile("https://www.yousite.com/ws/upload.php?option1=sss&options2=12121", FULL_FILE_NAME_PATH_IN_YOUR_PC, "files", "multipart/form-data")
I copy somen code in a website i dont remember.
I only put this 2 lines of code to work:
header = header & vbNewLine & "Content-Length: " & sizeInBytes.ToString & vbNewLine
header = header & vbNewLine & "Expect: 100-continue" & vbNewLine
hope help.

Answer 3

Here is the complete example for uploading file using Visual Basic and on Server Side PHP (Rest API) GitHub Link

Answer 4

Here is quick and dirty tutorial for you: PHP File Upload
'uploads' is just name attribute value of element of a form:
<input type="file" name="uploads" />
or in other words, this is POST variable name that is accessed over $_FILES global.

Answer 5

If you don't set the field name, you can save the uploaded file with this
$file = array_shift($_FILES);
move_uploaded_file($file['tmp_name'], '/path/to/new/location/'.$file['name']);

Answer 6

Take a look at some of these other answers. PHP requires files uploaded with the POST method to use certain headers which are normally set by the browser when uploading from a web form but which can be set in VB with the HttpWebRequest Class.
As for the PHP side, you aren't going to be able to locate the file immediately after uploading with $image = $_FILES['uploads']['name'];. PHP stores uploads with a temporary filename accessible with the $_FILES['uploads']['tmp_name'] variable, and using move_uploaded_file() is the standard way of shifting uploads from temporary storage into a permanent uploads directory. The PHP manual provides a good overview of that.

Answer 7

Here's my sample server php file:
<?php
// write to a log file so you know it's working
$msg = $_POST['w'];
$logfile= 'data.txt';
$fp = fopen($logfile, "a");
fwrite($fp, $msg);
fclose($fp);
$file = array_shift($_FILES);
move_uploaded_file($file['tmp_name'], '/MAMP/htdocs/test/'.$file['name']);
?>
Here's the code to call #Rodrigo's code:
HttpUploadFile("http://localhost/test/test.php?w=hello&options2=12121", "C:\temp\bahamas.mp3", "files", "multipart/form-data")