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up vote 0 down vote favorite

I got a part of html5 upload script, it is as follow:

        var xhr = new XMLHttpRequest();

        xhr.addEventListener("load", function () {
            alert('done');
            var i =xhr.getResponseHeader('header');
            alert(i.status);
        }, false);

        xhr.open("post", "upload/process", true);

        xhr.setRequestHeader("Content-Type", "application/json-rpc");
        xhr.setRequestHeader("X-File-Name", file.fileName);
        xhr.setRequestHeader("X-File-Size", file.fileSize);
        xhr.setRequestHeader("X-File-Type", file.type);

        xhr.send(file);

And My PHP is as follow:

    $name = $_SERVER['HTTP_X_FILE_NAME'];
    $path = '/upload/';
    if(file_put_contents($path.$name, "php://input"))
    {
        echo json_encode(array('status'=>'sucess', 'name'=>$name)); 
    }else{
        echo json_encode(array('status'=>'error'));
    }

I want to grab the Json response from server and show it. So far I don't know how, I tried

var i =xhr.getResponseHeader('header');
alert(i.status);

But i got a error "NULL".

share|improve this question
 
Please note, there is nothing wrong with the code, it works great, check out the demo. I just want to know how to grab the JSON response from server. –  runrunforest Feb 22 '11 at 13:48
 
fyi, it's success with two c –  ThiefMaster♦ Feb 25 '11 at 9:42
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2 Answers

up vote 2 down vote accepted

The MDC - XMLHttpRequest documentation provides good information.

The response is contained in xhr.responseText. So you have to do:

xhr.addEventListener("load", function () {
    alert('done');
    var i = JSON.parse(xhr.responseText);
    alert(i.status);
}, false);
share|improve this answer
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up vote 0 down vote

I think you might need quotes around "upload/process" in the line:

xhr.open("post", upload/process, true);

That is sort of a guess though.

share|improve this answer
 
thanks that's a typo, but in my demo does have "". –  runrunforest Feb 22 '11 at 13:45
 
Oh I'm sorry, I'm not really sure what the issue is then. –  Kevin Gurney Feb 22 '11 at 13:48
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