up vote 3 down vote favorite

I'd like to access a PHP array using JavaScript after a successful POST.

PHP Code:

return array('success' => true);

Javascript Code

$('#Get-Info').submit(function() {
$.post("info.php",
    function(data){
        if ( data['success'] ) {
            // Do things.
        }
    }
);
return false; });

The javascript function is definitely running, it just can't access the PHP array.

share|improve this question
Are you setting a header so the content type is JSON? Also what does you response look like (is that the only thing being returned?) – Nick Craver♦ Dec 9 '10 at 0:40
I tried setting the content type to JSON, no luck. For the purpose of trying to figure out what's wrong, that is indeed the only thing being returned in the info.php file. – Dewgong Dec 9 '10 at 0:41
feedback

1 Answer

up vote 2 down vote accepted

Make the php return json. Not sure about this part as I'm not a php programmer, but the javascript would look like this:

$('#Get-Info').submit(function() {
$.post("info.php",
    function(data){
        if ( data['success'] ) {
            // Do things.
        }
    }, "json"
);
return false; });

The only difference being that jQuery will automatically parse the data as json, the datatype parameter. More info.

If I'm not horribly wrong, this should work for the php, although it requires PHP 5.2.0:

echo json_encode(array('success' => true));

More info.

share|improve this answer
+1 - Looks good to me. – karim79 Dec 9 '10 at 0:46
Thanks. Works great. Do you know if there's much overhead associated with using json_encode in PHP? – Dewgong Dec 9 '10 at 0:51
I can't imagine there being, but don't take my word on it. Like I said, I'm no php programmer. – Harpyon Dec 9 '10 at 0:58
feedback

Your Answer

 
or
required, but never shown
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.