Send json string in ajax post

Question

var myData = JSON.stringify($('form').serializeArray());

$.ajax({ 
    cache: false,
    url: "http://localhost/Demo/store.php",
    type: "POST",
    data: myData,           
    complete: function (xhr, status) {
        if (status === 'error' || !xhr.responseText) {
            alert(status);              
        }
        else {
            var r = xhr.responseText;                       
        }
    }
});

$decoded = json_decode($_REQUEST['myData'],true);
print_r($_REQUEST);
exit;

if (is_array($decoded))
{
    foreach ($decoded as $value) {
        echo $value["name"] . "=" . $value["value"];
    }
}

When i am trying to decode the data in php the error is undefined index myData..Please help me..Thanks.

Am i using correct format to send the json string..?? In console log its showing the json string like this: [{"name":"name","value":"xyz"},{"name":"age","value":"22"},{"name":"gender","value":"male"},{"name":"skills","value":"Php"},{"name":"skills","value":"Java"},{"name":"note","value":"sadasd"}] — yaseen cruise, Sep 03 '13 at 10:11
please edit your original post with additional information instead of posting it as a comment. — jdepypere, Sep 03 '13 at 10:14
why do you want to JSON.stringify the value, try just with : var myData = $('form').serializeArray(); — RONE, Sep 03 '13 at 10:15
possible duplicate of [How to retrieve Request Payload](http://stackoverflow.com/questions/9597052/how-to-retrieve-request-payload) — Quentin, Sep 03 '13 at 10:15

score 0 · Answer 1 · answered Sep 03 '13 at 10:15

0

Give it a try with:

$decoded = json_decode($_POST['myData'],true);

answered Sep 03 '13 at 10:15

Antoan Milkov

2,152
17
30

score 0 · Answer 2 · answered Sep 03 '13 at 10:17

0

Try this when call ajax

data: {'myData' : myData},

Then access using

json_decode($_POST['myData'],true);

or

json_decode($_REQUEST['myData'],true);

answered Sep 03 '13 at 10:17

som

4,650
2
21
36

Even if i declare an object and try to sue it with that i am able but your answer is more of an easy solution easy solution to this.. var param = new Object(); param['myData'] = myData; – yaseen cruise Sep 03 '13 at 10:35
Whne i try to decode json string its showing error as json_decode() expects parameter 1 to be string – yaseen cruise Sep 03 '13 at 10:40

score 0 · Answer 3 · answered Sep 03 '13 at 10:20

try this pass datatype :

$.ajax({
    url: 'http://localhost/Demo/store.php',
    type: 'POST',
    dataType: 'json',
    data: $('#form').serialize(),
    success: function(xhr, status) {
    if (status === 'error' || !xhr.responseText) {
        alert(status);              
    }
    else {
        var r = xhr.responseText;                       
    }
}
});

score -1 · Accepted Answer · answered Sep 03 '13 at 10:17

-1

When you pass a string as the data property is just appends it as a parameter query string to the URL. If you want to send an encoded JSON string you still need to give it a name:

data: {myData: myData}

Now you can use the myData request parameter in your PHP script.

answered Sep 03 '13 at 10:17

Anthony Grist

38,173
8
62
76

I don't expect to get one, but I would rather like an explanation as to what somebody thinks is incorrect about my answer. – Anthony Grist Sep 03 '13 at 10:21
But in json_decode its showing error as json_decode() expects parameter 1 to be string – yaseen cruise Sep 03 '13 at 10:36

score -2 · Answer 5 · answered Sep 03 '13 at 10:13

-2

used dataType:json;tosend json.

answered Sep 03 '13 at 10:13

Amnishyadav

21
1
4

`dataType` is *The type of data that you're expecting **back** from the server* – Quentin Sep 03 '13 at 10:16

Send json string in ajax post

5 Answers5