send data to json from php

Question

my json script is:

// add button .click
$('a.add').click(function(){ 
    $('#loader').show();
    var url = "/?"+$("form[name='jsms_add']").serialize();  
    ajx = $.ajax({
        url: url,
        type: 'post',
        data:{ajax:1},  
        dataType: 'json',
        success: function(r) {
            $('#loader').hide();
            if(r.r != 0){
                alert("ok");
                jsmsalert($('#alert_add'),'success',r.m);
                apendtable(r.r)
                $("tr").removeClass("odd");
                $("tr.viewrow:odd").addClass("odd");
                $("tr.editrow:odd").addClass("odd");
                $('td[colspan="7"]').remove();
            }
            else{
                jsmsalert($('#alert_add'),'error',r.m,0);                        
            }
        },
        error: function(request, status, err) {
            $('#loader').hide();
            jsmsalert($('#alert_add'),'error','error...'); 
            alert( "ERROR:  " + err + "  -  "  );
        }      
    });

and in my php file i have

$data = array(
    'r'    => '1',
    'm'    => '1',
);
json_encode($data);

now i want to know that how can i send a value to json that r.r != 0 be true and my success code execute? In Firefox the error is "SyntaxError: JSON.parse: unexpected character" this code used by another site by i don't know what happend in php file

my problem is that how can i send some data (for example r=1) to my json, because i want to check that if r=1 (means success) do something and show text from m (message) in my page

please help me to correct php file thank

I think you have a fundamental missunderstanding of javascript and php here. First, that is a javascript file, not json. JSON or Javascript Object Notation is used as a transfer type between client and server in this case. Second, you serialize the form in the url you are posting to, then manually set the data that you want to post? On the server side, you could need to echo any results you want the javascript to be able to read — mituw16
– mituw16, Commented Mar 31, 2014 at 19:25
header('Content-Type: application/json'); echo json_encode($data); — Steve
– Steve, Commented Mar 31, 2014 at 19:42
this code is not for me, but this code work in another site that i dont know what happend in php file, json code is in a file with .js extention (javascript) — hamidso
– hamidso, Commented Mar 31, 2014 at 19:45
I suggest you read more about what you're dealing with before you continue: JavaScript, JSON, PHP — Nate Kibler
– Nate Kibler, Commented Mar 31, 2014 at 20:02

user2784218 · Accepted Answer · 2014-03-31 21:05:37Z

1

In your php file make sure you are echoing the encoded data, like so:

$data = array(
'r'    => '1',
'm'    => '1',
);
echo json_encode($data);

If you don't echo the data it will not make it back to your JavaScript. If your JavaScript is what's throwing the errors try commenting out the dataType: 'json', and console logging the return. It might be php is throwing errors that jquery is refusing to parse.

$.ajax({'url': url,type: 'post',data:{ajax:1}, success: function(returnData){
        console.log(returnData);
}});

edited Mar 31, 2014 at 21:05

answered Mar 31, 2014 at 20:16

user2784218

235 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

hamidso Over a year ago

yes i echo in my file but i have an error "SyntaxError: JSON.parse: unexpected character"

hamidso Over a year ago

my last error for this code is SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data

user2784218 Over a year ago

Let us know what gets logged in the console.

hamidso Over a year ago

nothing showing in console just one time page that i sent "/?" shown

user2784218 Over a year ago

I don't understand please provide more data

Collectives™ on Stack Overflow

send data to json from php

1 Answer 1

5 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

5 Comments

Your Answer

Sign up or log in

Post as a guest

Related