Attempt to assign property “filter” on null

Same thing happening here on PHP 8.0 and WP 6.0:

2022/06/09 01:07:50 [error] 15492#15492: *4500220 FastCGI sent in stderr: "PHP message: PHP Warning:  Attempt to read property "filter" on null in [REDACTED]/wp-content/plugins/gd-bbpress-tools/code/mods/signature.php on line 70PHP message: PHP Fatal error:  Uncaught Error: Attempt to assign property "filter" on null in [REDACTED]/wp-content/plugins/gd-bbpress-tools/code/mods/signature.php:71
Stack trace:
#0 [REDACTED]/wp-includes/class-wp-hook.php(307): GDBTOModSignature->editor_form_profile()
#1 [REDACTED]/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters()
#2 [REDACTED]/wp-includes/plugin.php(476): WP_Hook->do_action()
#3 [REDACTED]/wp-admin/user-edit.php(847): do_action()
#4 {main}
  thrown in [REDACTED]/wp-content/plugins/gd-bbpress-tools/code/mods/signature.php on line 71" while reading response header from upstream, client: [REDACTED], server: [REDACTED], request: "GET /wp-admin/user-edit.php?user_id=3125&wp_http_referer=%2Fwp-admin%2Fusers.php%3Fs%3Dmordisko%26action%3D-1%26new_role%26bbp-new-role%26bbp-bulk-users-nonce%3Db296c763a6%26paged%3D1%26action2%3D-1%26new_role2%26bbp-new-role2 HTTP/2.0", upstream: "fastcgi://unix:/var/run/php/php8.0-fpm.sock:", host: "[REDACTED]"

The problem seems to be that $profileuser is no longer a global variable. Solved it by declaring that as a parameter.

In order to solve it I edited the file “wp-content/plugins/gd-bbpress-tools/code/mods/signature.php” by replacing the whole editor_form_profile function for the following:

public function editor_form_profile($profileuser) {
    if (!is_admin()) {
        return;
    }

    $old_filter = $profileuser->filter;
    $profileuser->filter = 'display';

    $_signature = d4p_bbp_update_shorthand_bbcodes($profileuser->signature);

    $profileuser->filter = $old_filter;

    $form = apply_filters('d4p_bbpresstools_signature_editor_file', GDBBPRESSTOOLS_PATH.'forms/tools/signature_profile.php');
    include_once($form);
}

I can’t confirm that this will work for everyone, but so far I can edit a user profile and modify it’s BBPress settings (which I couldn’t do before) and no more HTTP 500 errors seem to be happening.

• This reply was modified 2 years, 5 months ago by mordisko.

Hi @mordisko I applied your fix and tested modifying the Profile (and signature) it all seems to work. Thanks!

I have not seen errors anymore, so far, but cannot be sure because I have not been able to reproduce the errors deliberately. I just got warning mails from time to time but have no idea when/how the issue is triggered exactly. I’ll report back here if the error occurs again ??

This worked for me as well!
THANK YOU, THANK YOU, THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!