why Json encode return error after new xampp installed php?

Question

I have json encode method, I use this to built an api to return json data. It's work perfectly, but after I install Xampp new version again this will display an error:

Note - This works perfectly on my previous xampp, this error came after i installed new xampp

<?php
if ($result->num_rows > 0) {

    while ($row = $result->fetch_assoc()) {

           $myObj[$a]->id   = $row["district_code"];
           $myObj[$a]->name = $row["district_name"];
           $myObj[$a]->type = 'District';

           $a++;

     }

    $myJSON = json_encode($myObj);
    echo $myJSON;
}
?>

Error:

Fatal error: Uncaught Error: Attempt to assign property "id" on null

Xampp probably upgraded your PHP version. You should probably check what you're installing instead of just randomly downloading all upgrades. — ADyson, Aug 05 '21 at 18:01
Does this answer your question? [Reference - What does this error mean in PHP?](https://stackoverflow.com/questions/12769982/reference-what-does-this-error-mean-in-php) — Nico Haase, Aug 06 '21 at 14:03

score 2 · Answer 1 · answered Aug 05 '21 at 17:51

2

You need to create $myObj first, for example with $myObj = new stdClass();, before assigning properties to it.

answered Aug 05 '21 at 17:51

Szymon

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`$myObj = new stdClass();` doesn't work with array like this `$myObj[$a]->type = 'District';` – madurange Aug 05 '21 at 18:56

why Json encode return error after new xampp installed php?

1 Answers1