How to correctly return json to IE8 from ajax php script

Question

I am using this ajax file upload script, and all works well in firefox http://valums.com/ajax-upload/

But it does not work in IE8.

EDIT: Ok, i've narrowed down the problem. In my php ajax response I do this

$result['table_1']='<b>text</b>';
echo json_encode($result);

The result I see in the IE developer tools looks like this

JOURNAL : [uploader] innerHTML = {"table_1":"<B>text&lt;\/b&gt;"}</B>

The end of the inner html got messed up, and the json got messed up with the correct ending tag somehow ending up outside the json??

I am using php 5.2

The quotes don't match. See labelrow and label

bcosca
– bcosca

2010-11-12 15:28:09 +00:00
Commented Nov 12, 2010 at 15:28 — bcosca
– bcosca, Commented Nov 12, 2010 at 15:28

Joel A. Villarreal Bertoldi · Accepted Answer · 2010-11-12 17:19:51Z

2

You should try validating your JSON response with JSONLint. On the other hand, if you've got PHP >= 5.3.0, you can use json_last_error() to verify what's causing PHP to fail on the encoding process.

answered Nov 12, 2010 at 17:19

Joel A. Villarreal Bertoldi

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Community · Accepted Answer · 2017-05-23 10:25:44Z

1

I had a similar problem Invalid JSON: {"text":"<H2>Update Complete<\/H2>"}</H2> with ie and solved it by using ~~http://www.captain.at/howto-php-urlencode-javascript-decodeURIComponent.php~~ (that site is no longer programming I found a similar function here What is the equivalent of JavaScript's encodeURIcomponent in PHP?) on the PHP side

$response->text .= encodeURIComponent("<H2 class='action_result'>Update Complete.</H2>");
return json_encode($response);

and in the js I used

function showResponse(responseText, statusText, xhr, $form)  {
var response = jQuery.parseJSON (responseText);
$('#ajax_form_response')[0].innerHTML = decodeURIComponent(response.text);
}

edited May 23, 2017 at 10:25

CommunityBot

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answered Apr 30, 2013 at 19:57

Aba

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Comments

Matt · Accepted Answer · 2010-11-16 10:28:40Z

0

Ok, I found a olution that works. This library works through an iframe, so to return text like

$result='<b id="1">text</b>';

I have to manually encode and decode the " myself because they get messed up in the iframe. So the final php looks like this

$result['table_1']=htmlentities(str_replace('"','|',getRowHTML()));
echo json_encode($result);

And then to manually decode in the javascript looks like this

   function(id, fileName, responseJSON)
    {
      $('#table_1 tbody').html
      (
         //this line decodes responseJSON.table_1
         $("<div/>").html(responseJSON.table_1.replace(/\|/g,'"')).text()
      );
    }

answered Nov 16, 2010 at 10:28

Matt

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