Ajax FormData file upload not working [JQuery] [PHP] -


My upload form is not working for any reason, when I run the form PHP file and my $$$ FILES The variable is empty. I have been trapped for hours and I think I have gone through every post on this site and I do not understand what is happening.

HTML 

  & lt; form id = "uploadform" name = "uploadform" method = "POST" encrypt = "multipart / form-data" & gt; & Lt; Input id = "actual upload" name = "actual upload" type = "file" multiple /> & Lt; Input id = "upload upload" type = "submit" value = "upload" / & gt; & Lt; / Form & gt; Click the   
 JQuery  
  $ ('# uploadsubmit') (function (e) {e.preventDefault (); $ .ajax ({Type: "Post", url: "upload.php", data: function () {warning ("test"); var data = new form data (); data .append ("realupload", jquery ("# ​​realupload") (0) .file [0]; return data;}, process data: wrong, content type: wrong, cache: wrong, success: work (data) {$ ('# innercontent'). Html ;}, Error: function () {$ ('# internal content'). Html ("error, help");}});}});   
 PHP (upload.php)  
  & lt ;? php //upload.php if (isset ($ _ files ["actual upload"])) {echo "successfully uploaded" $ _FILES ["realupload"] ["error"]; } And {resonate "files not set"; }? & Gt;   
     
  •  The PHP file is just a test file to check if the upload is done  
  •  Never set the output files  
  •  Warning is not run in the AJAX data function, I'm not sure that it should be  
  •  Trying to create a multi file uploader   
     Could it be Do with the server? There has already been uploaded to a forum which allows to upload itself, so I do not think this is the case, but I'm not sure.  
     Thank you!  
     Edit: Friends, thanks for the link, but now you can upload files with HTML5 and XmlHttpRequest2 objects and I'm trying to understand it.   
     
     
     It is not possible to upload a file using AJAX.  
     You have to use an iframe to upload files. Therefore, you can use the iframe for asynchronous uploads (like AJAX, but its not ajax).

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