json object in php not being read

Echo and die the statement in order for ajax to have a success event

Js File

 var myobj = {};        myobj["usrname"] = 'myUsername';        myobj["usrpass"] = 'myPassword';        $.ajax({            type: "post",            url: "url",            dataType: "json",            data: {post_data: myobj},            contentType: "application/x-www-form-urlencoded",            success: function (responseData) {                console.log(responseData);            },            error: function (errorThrown) {                console.log(errorThrown);            }        });

PHP action File

           /** if we print post we will get the following array * *///print_r($_Post);//die()//Array//(//    [post_data] => Array//        (//            [usrname] => myUsername//            [usrpass] => myPassword//        )////)if (isset($_Post['post_data'])) {    $myPost = $_Post['post_data'];    $usrname = $myPost['usrname'];    $usrpass = $myPost['usrpass'];    $sql = "select count(*) from glusers where EmpName='$usrname' and EmpPass='$usrpass'";    $result = $conn->query($sql);    $num_row = $result->num_rows;    if ($num_row > 0) {        $output = 'Success';    } else {        $output = 'fail';    }    echo json_encode($output);    die();}

Try This : in js file :

$(document).on("ready", function(){            // Create an object using an object literal.            var ourObj = {};            // Create a string member called "data" and give it a string.            // Also create an array of simple object literals for our object.            ourObj.data = "Some Data Points";            ourObj.arPoints = [{'x':1, 'y': 2},{'x': 2.3, 'y': 3.3},{'x': -1, 'y': -4}];            var savedata = JSON.stringify(ourObj)            $.ajax({                type:"POST",                url:"Users.php",                data: {"points" : JSON.stringify(ourObj)},               success: function(data) {                    // Do something with data that came back.                     alert(data);               }            })        }); 

In PHP File :

if (isset($_POST["points"])) {$points = json_decode($_POST["points"]);echo "Data is: " . $points->data . "<br>";echo "Point 1: " . $points->arPoints[0]->x . ", " . $points->arPoints[0]->y;}

Try this:

var myobj = '{usrname:'+$( "#customer option:selected" ).text()+',usrpass:'+$("#psw").val()+'}';

or

var myobj = {};myobj.usrname= $( "#customer option:selected" ).text();myobj.usrpass= $("#psw").val();