javascript - Dealing with returned JSON data -


i'm querying database using ajax (jquery) data i'm getting proving difficult deal with. did notice others have posted similar issues , identified php code (specifically how data being allocated array) being issue. couldn't find solution. contents of returned data (when transform returned data string) looks this:

[{"id":"1","username":"admin","userpassword":"admin","useremail":"admin@admin.com","userregistrationip":"","registrationdatetime":"2015-05-28 21:22:54","userlastlogin":"2015-05-28 21:22:54"}]

i'd able pull individual element returned data, such userlastlogin field.

my ajax query:

$.ajax({      url: 'authenticate2.php',     type: 'post',     datatype: 'json',     data: {           username: $('#username').val(),           },      success: function (res) {       $('#resultbox').text(res);      } });

my php below:

<?php  $con = mysqli_connect('127.0.0.1','root','','db1'); if (!$con) {     die('could not connect: ' . mysqli_error($con)); }  mysqli_select_db($con,"db1"); $sql="select * users username = 'admin'";  $result = mysqli_query($con,$sql);   $rows = array(); while($r = mysqli_fetch_assoc($result)) {     $rows[] = $r; }  echo json_encode($rows); mysqli_close($con); ?>

this'll you

js

success: function (res) { var res = [{"id":"1","username":"admin","userpassword":"admin","useremail":"admin@admin.com","userregistrationip":"","registrationdatetime":"2015-05-28 21:22:54","userlastlogin":"2015-05-28 21:22:54"}]; $.each(res,function(key,value){      alert(res[key].id);      alert(res[key].username);      alert(res[key].userpassword);      alert(res[key].useremail);      alert(res[key].userregistrationip);      alert(res[key].registrationdatetime);      alert(res[key].userlastlogin); }) }

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