I want to send a picture of AJAX and get its data. I still don’t see any need for it for myself, but it has become interesting and so far not working. Specifically, my code:

HTML

<form id="myform"> <input type="file" name="filename"> <input type="button" name="button" value="Загрузить"> </form>

Js

 var form = document.forms.myform; form.elements.button.onclick = function(){ var file = form.elements.filename.files[0]; if(file){ img(); }else{ alert("Выберете файл."); } } function img(){ var formdata = new FormData(form.elements[0]); var xhr = new XMLHttpRequest(); xhr.upload.onprogress = function(e){ load.textContent = e.loaded + " / " + e.total; }; xhr.open('POST', 'img.php'); xhr.setRequestHeader('Content-Type', 'image/jpeg'); xhr.send(formdata); xhr.onreadystatechange = function(){ if(xhr.status != 200){ alert("Status: " + xhr.status); }else{ alert(xhr.responseText); } }; }

Php

 <?php error_reporting(-1); print_r($_FILE['filename']['size']); ?>

The file was not transferred at all (of course, debugging showed it) And it was because of FormData () . It was necessary to transfer with append , but it had to work and already FormData (argument) . After that issues:

Warning: Missing boundary in multipart/form-data POST data in Unknown on line 0 ------WebKitFormBoundaryWmXgtD5Kn1xyTV8q Content-Disposition: form-data; name="filename"; filename="5f944a3ea1b8fcb56bd54f326666a04b.jpg" Content-Type: image/jpeg ÿØÿàJFIFHHÿÛC...

But for some reason you can't get the name from $ _FILES ['filename'] ['name']. + gives all this information only through php: // input.

Transferred from meta.ru.stackoverflow.com Jul 24, '16 at 7:45 .

This question was originally posted on the discussion forum, support and innovations for the site programmers.

  • And what exactly is "not yet working"? - D-side
  • @ D-side, if you parse php: // input, then displays WebKitFormBoundary x , x is the n-th number of random numbers, if nothing is $ _FILES. + clarification: at the end of ** PHP ** code I missed the letter "S" in glob. change. "$ _FILE" - TotalHen

1 answer 1

For parsing, it was not necessary to set a global variable encoding.

  • It is not the answer to the question. To leave your comments or ask the author to clarify, leave a comment to the appropriate post. - From the queue of checks - Flowneee
  • And what other answer is needed? Removed the image / jpeg encoding it all worked. - TotalHen