JSON Parse error with unrecognized token when trying to add own PHP code

[Andreas Heck]

I couldn't find any answer resp. solution for my problem:

jQuery-File-Upload working finde so far. But if I try to add some own PHP stuff, i get often the error:

SyntaxError: JSON Parse error: Unrecognized token '<'

I can not say what kind of PHP commands the script doesn't like, but although the error states the token '<' I've made the experience, that there is a problem with brackets and quotation marks. But not always, it depends on something I don't know!

Very strange. So the question is:

Has anybody had the same problem and has found a solution in the meantime?

Thanks in advance.

Greetings, Andreas.

[Jaap Koelman]

Well, i did ran into a JSON problem too and maybe this one helps (not sure).

What i did was to modify the function generate_response within upload.class.
instead of 

$this->body($json);

i changed it too :

die($this->body($json));

Like said not sure if it's the correct thing to do but this time i'm seeing images + files are being uploaded

[Andreas Heck]

The problem has been simply a PHP generated warning, so you're hint was right. Thank you for tha.t 

[Alfonso Roman]

Hi Andreas, I already change the line of code with the new one (die($this->body($json));) but still have the same problem, did you do anything else for solving it?

Thank you.

[Alfonso Roman]

Hello I already found out the problem, It was a security issue, in the folder where the files are saved.

[luis...@gmail.com]

which were the folder permissions needed?