i used ajax call and send "itemShape" as data but in url page it's show Undefined index: itemShape

Question

Hello i used ajax function send data:itemShape and when i directly run url page or service page it's show error:

Notice: Undefined index: itemShape in C:\wamp64\www\inventory_software\get_item_types_dhk.php on line 5

please someone help how to solve this issue. i am going to upload pic of error for better understanding:

here is the url page code:

<?php
include 'config.php';


    $itemShape = $_POST["itemShape"];

    $mysql="SELECT product_id,item_shape from product_table where item_name="."'$itemShape'";
    //echo $mysql;
    $count=0;
    $myquantity = $conn->query($mysql);
    $new_array=array();
if ($myquantity->num_rows > 0) {
        while($myrow = $myquantity->fetch_assoc()) {
            $quantity_sum['count']=$count+1;
            $quantity_price['item_name']= $myrow['item_shape'];
            $quantity_price['item_id']= $myrow['product_id'];
            array_push($new_array,$quantity_price);


        }
    }
    $new_item=array_merge($quantity_sum,$new_array);
    echo json_encode($new_item);
?>

this is the ajax method which is used:

$('#item_name').change(function(){
        //alert();
        var Item_Name=$("#item_name option:selected").text();
        alert("item_name");
         $.ajax({
         type: 'POST',
         url: 'get_item_types_dhk.php', 
         data: {itemShape: Item_Name},
         dataType: "json",
         success: function(data){

Someone please help me how to solve this issue

you need to `post` the `itemShape` `data` to that page otherwise you will get `undefined index` only — JYoThI, Aug 10 '17 at 09:47
Get the request body using `file_get_contents('php://input')`. — Jonnix, Aug 10 '17 at 09:48
@JYoThI sorry i can't understand would you please explain. actually this is my first time work on ajax.. — rads installation, Aug 10 '17 at 09:49
If by `when i directly run url page` you mean you are putting the address of the PHP script into the browser address and runngin it. You are not setting the POST data when you do that — RiggsFolly, Aug 10 '17 at 09:49
oh i got it @RiggsFolly... you mean i have to change value??? — rads installation, Aug 10 '17 at 09:52
While tesing like that you could change `$_POST` to `$_GET` and do `http://example.com/get_item_types_dhk.php?itemShape=100` — RiggsFolly, Aug 10 '17 at 09:54
@RiggsFolly yes dear instead of example.com i used my folder name. i there any other change i used when i run that??? i mean i want to comment anything in PHP code. — rads installation, Aug 10 '17 at 10:07
Add [error reporting](http://stackoverflow.com/questions/845021/how-to-get-useful-error-messages-in-php/845025#845025) to the top of your file(s) _while testing_ right after your opening PHP tag for example ` — RiggsFolly, Aug 10 '17 at 10:11
@RiggsFolly it's show nothing.. can we discuss this on email please.. i really need to solve this — rads installation, Aug 10 '17 at 10:18
@radsinstallation check my answer it should solve your problem — Fanckush, Aug 10 '17 at 10:29
Give us your request header, that will show what you are sending — mukund, Aug 10 '17 at 11:49
@mukund basically i am working on localhost so i used : localhost/inventory_software/get_item_types_dhk.php — rads installation, Aug 10 '17 at 12:37
@radsinstallation thats true but if you look at network in your browser debugger, you can see the request and response headers. So looking at your response header we can get idea what may preventing your post — mukund, Aug 10 '17 at 12:57
Try this in ur php to check what you are receiving: `var_dump(file_get_contents("php://input"));` — mukund, Aug 10 '17 at 12:59

Fanckush · Answer 1 · 2017-08-10T10:41:35.937

0

You are sending your data as a json without setting contentType to json.

Solution 1: send you data in the default format:

Instead of data: {itemShape: Item_Name},

do data: "itemShape=" + Item_Name,

Solution 2: set content type for json:

Setting dataType to json is meant fo the data received and not the data you are sending; for setting the data type of the data you are sending you use contentType like this:

$.ajax({
  type: 'POST',
  url: 'get_item_types_dhk.php',   
  contentType: "application/json; charset=utf-8", //set data to be json
  // data: {itemShape: Item_Name}, // before
  data : JSON.stringify({itemShape: Item_Name}), //after
  dataType: "json", // this is the returned data type...
  success: function(data)

Read a more detailed answer the difference between dataType and contentType over here What is content-type and datatype in an AJAX request?

edited Aug 10 '17 at 10:41

answered Aug 10 '17 at 10:25

Fanckush

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3
10

The default content type is `"application/json; charset=utf-8"` – JYoThI Aug 10 '17 at 10:32
@JYoThI even if it is, he is not converting the json to a string with `JSON.stringify `, plus it is better to explicitly set the contextType to reduce the chances of errors – Fanckush Aug 10 '17 at 10:35
@JYoThI i just looked it up to be sure and according to jQuery documentation [link](http://api.jquery.com/jquery.ajax/): `'application/x-www-form-urlencoded; charset=UTF-8'` is the default contentType – Fanckush Aug 10 '17 at 10:40

i used ajax call and send "itemShape" as data but in url page it's show Undefined index: itemShape

1 Answers1