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Editorial Team
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Asked: 2026-05-27T09:22:26+00:00

My script returns undefined value from my json_encode php index.php <?php $returnThis[‘user’] = Robin098;

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My script returns undefined value from my json_encode php

index.php 

<?php
    $returnThis['user'] = "Robin098";
    $returnThis['id'] = "08465";

    echo json_encode($returnThis);
?>

sample.html

<head>
    <script>
        function clickHere(){
            $.get("index.php", function(data) {
            alert(data.user);
            });
        }

    </script>
</head>
       <body>
       <input type="button" onclick = "clickHere();" value="ClickHere!"/> 
       </body>

How can I fix this?

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1 Answer

  1. Editorial Team

    Use the jQuery.getJSON method instead of .get, if you want your JSON to be parsed. Also, make sure that the jQuery library is correctly loaded.

        function clickHere(){
        $.getJSON("index.php", function(data) {
            alert(data.user);
        });
    }

    Currently, you’re using $.get(url, function(data){...}). In this context, data is a string containing the response from the server:

    {"user":"Robin098","id":"80465"}

    Using alert(data) inside the function will show this string.

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