Ajax Call From PHP File TO a PHP File

Question

Here is a ajax call i did in my php file :

$.ajax({
                type: "POST",
                url: "../includes/filters.php",
                data: {"email" : email},
                dataType: "json",
                success: function(data) 
                {
                    if(data.equals('sent'))
                     {  
                        alert(data);
                     }
                    else
                    {
                        alert("There Was Some Problem Please Try Again!");
                    }

                },
                    error: function(xhr, status, text) {
                        console.log(xhr);
                        console.log(status);
                        console.log(text);
                    }
              });

and here is the filters.php file :

$email = $_POST['email'];
        $email = filter_var($email, FILTER_VALIDATE_EMAIL);
        $query = "---------some query------";
        $stmt = $mysqli->prepare($query);
        $stmt->bind_param("s", $email);                 
        $stmt->execute();
        $stmt->store_result();
        $temp = $stmt->num_rows;
        if ($temp == 1)         
        return json_encode('true');
        else 
        return json_encode('false');

here is the error i am getting in the consol

Object {readyState: 4, responseText: "", status: 200, statusText: "OK"}
(index):120 parsererror
(index):121 SyntaxError: Unexpected end of input
    at Object.parse (native)
    at n.parseJSON (http://localhost/pedagoge/assets/plugins/jquery/jquery-2.1.4.min.js:4:5497)
    at ub (http://localhost/pedagoge/assets/plugins/jquery/jquery-2.1.4.min.js:4:7521)
    at x (http://localhost/pedagoge/assets/plugins/jquery/jquery-2.1.4.min.js:4:10935)
    at XMLHttpRequest.n.ajaxTransport.k.cors.a.crossDomain.send.b (http://localhost/pedagoge/assets/plugins/jquery/jquery-2.1.4.min.js:4:14765)

please help me out, since i have already tried all the JSON conversion, i even tried converting a php variable with a string in it, no lead

What is data.equals()? Are you confusing Javascript with Java? — Barmar
– Barmar, Commented Jul 30, 2015 at 16:42

Barmar · Accepted Answer · 2015-07-30 16:42:23Z

1

You need to echo the JSON response, not return it.

echo json_encode($temp == 1 ? 'true' : 'false');

Also, your Javascript code expects the response to be sent when it's successful, not true or false.

And in Javascript, you compare things with ==, not .equals():

if (data == "sent")

answered Jul 30, 2015 at 16:42

Barmar

789k57 gold badges554 silver badges669 bronze badges

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

Comments

Kenney · Accepted Answer · 2015-07-30 16:44:16Z

0

There is no output from filters.php; you need to echo instead of return.

Without using JSON:

    $email = $_POST['email'];
    $email = filter_var($email, FILTER_VALIDATE_EMAIL);
    $query = "---------some query------";
    $stmt = $mysqli->prepare($query);  // XXX $mysqli is not initialized
    $stmt->bind_param("s", $email);                 
    $stmt->execute();
    $stmt->store_result();
    echo $stmt->num_rows == 1 ? "sent" : "not-sent";

answered Jul 30, 2015 at 16:44

Kenney

9,11317 silver badges21 bronze badges

Comments

RiggsFolly · Accepted Answer · 2015-07-30 16:55:30Z

0

I am pretty sure that the result of your json_encode('true'); does not actually constitute valid JSON, which you have specified in your ajax call as the dataType you are expecting the result to be returned as, which is why you are getting the parse error.

echo json_encode('true');

Gives

"true"

Not a json string by any stretch of the imagination.

Try this instead

$result = array();
$result['status'] = 'not sent';

if ($temp == 1) {
    $result['status'] = 'sent';
}

echo json_encode($result);

Now in your javascript success function

success: function(data) 
{
    if(data.status == 'sent') {  
        alert(data.status);
    } else {
        alert("There Was Some Problem Please Try Again!");
    }

},

edited Jul 30, 2015 at 16:55

answered Jul 30, 2015 at 16:50

RiggsFolly

94.7k22 gold badges108 silver badges152 bronze badges

Collectives™ on Stack Overflow

Ajax Call From PHP File TO a PHP File

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related