PHP Warning: Attempt to read property

[26-Feb-2026 14:09:29 UTC] PHP Warning: Attempt to read property “success” on null in

\wp-content\plugins\simple-banner\simple-banner.php on line 552

Version 3.2.1

json_decode($result) is returning null, so $json is null — and you’re trying to read $json->success.

In PHP 8+, accessing a property on null throws this warning.

$json = json_decode($result);

// 2026-02-27, gwb, fix php warning Attempt to read property "success" on null
$success = (is_object($json) && property_exists($json, 'success'))
? $json->{'success'}
: null;

//$success = $json->{'success'};

is_object($json)
makes sure json_decode($result) didn’t return null or something invalid

property_exists($json, 'success')
makes sure the success property is present

? $json->{'success'} : null
if both checks pass, use the value
otherwise, set $success to null

compatible with PHP 8.x (and also works in PHP 7.x).

• This topic was modified 4 weeks, 1 day ago by capegreg.