In particular, the PHP bug affects the function of the WordPress “found_posts” filter. When called, the following warning is given:
Warning: Parameter 2 to test_call() expected to be a reference, value given
In AccessAlly 2.2.9, we have added an option in AccessAlly General Settings → Initial Setup → Additional Features → (Advanced) Always enable “found_posts” filter.
This option is only shown if the server is running PHP 7.1 or higher, which are the only versions that are affected by the PHP bug.
We recommend NOT enabling the option unless you need the post-filtering feature.
IMPORTANT: Once enabled, please check the front end to make sure the warning message is NOT shown. If it is, please contact server host to disable verbose error reporting.