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Asked: 2026-05-20T04:54:29+00:00

I’m probably misunderstanding JSON, but why this code doesn’t work? HTML <html> <head> <title>Test</title>

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I’m probably misunderstanding JSON, but why this code doesn’t work?

HTML

<html>
    <head>
        <title>Test</title>
        <script type="text/javascript" src="js/jquery.js"></script>
        <script type="text/javascript" src="js/main.js"></script>
    </head>
    <body>
        <div class="response">
            Name: <span class="name"></span><br>
            Password: <span class="password"></span><br>
    </body>
</html>

MAIN.JS

$(document).ready(function(){

    $.ajax({
        type: "POST",
        url: 'action.php',
        dataType: 'json',
        success: function(msg){
            $.each(msg, function(index, value){
                if (index == 'name') { $('.name').html(value.name); }
                if (index == 'password') { $('.password').html(value.password); }
            });
        },

        error: function(){
            $('.response').html("An error occurred");
        }
    });

});

ACTION.PHP

<?php

$array = array(
    0 => array(
        'name' => "Charlie",
        'password' => "none"
    ),
    1 => array(
        'name' => "Tree",
        'password' => "tree"
    )
);

echo json_encode($array);

?>
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1 Answer

  1. Editorial Team

    In your javascript, index will be ‘0’ and ‘1’, never ‘name’ and ‘value’:

        success: function(msg){
        $.each(msg, function(index, value){
            $('.name').html(value.name);
            $('.password').html(value.password);
        });
    },

    Of course, as this stands now, you’ll be setting your fields twice, and only the last one will “stick”

    If you wanted use just the ‘Charlie’ result, then

        success: function(msg){
        $('.name').html(msg[0].name);
        $('.password').html(msg[0].password);
    },

    and for ‘Tree’, just change the array subscripts to 1

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