I'm using latest Dropzone.js release 3.7.1 and PHP script to upload file to server

I'm would like to get message back to drop zone area, on image so i exit with

header('HTTP/1.1 500 Internal Server Error');
header('Content-Type: application/json');
exit();

this display a generic dropzone error on image but if i use

header('HTTP/1.1 500 Internal Server Error');
header('Content-Type: application/json');
exit("My error");

I get "Invalid JSON response from server."

if i use

header('HTTP/1.1 500 Internal Server Error');
header('Content-type: application/json');
exit(json_encode(array('message' => '$msg', code => 500)));

i get "[object Object]"

Does drop zone pass file upload as an array or as a single file?

I'm using latest Dropzone.js release 3.7.1 and PHP script to upload file to server

I'm would like to get message back to drop zone area, on image so i exit with

header('HTTP/1.1 500 Internal Server Error');
header('Content-Type: application/json');
exit();

this display a generic dropzone error on image but if i use

header('HTTP/1.1 500 Internal Server Error');
header('Content-Type: application/json');
exit("My error");

I get "Invalid JSON response from server."

if i use

header('HTTP/1.1 500 Internal Server Error');
header('Content-type: application/json');
exit(json_encode(array('message' => '$msg', code => 500)));

i get "[object Object]"

Does drop zone pass file upload as an array or as a single file?

• javascript
• php
• ajax
• dropzone.js

1 Answer 1

You can set the response Content-Type to text/plain and just send the message, or set the Content-Type to application/json and send {"error": "message"}.

In both cases you need to send an error header, otherwise Dropzone will not interpret the response as an error:

header('HTTP/1.1 500 Internal Server Error');
header('Content-type: text/plain');
exit("My error");