[Ironguts25]

If your plugin uses this (e.g. to insert data into a dropdown list) and you have upgraded to PHP 7.1, these nuisance errors now show on the screen even if PHP error reporting config has been set not to show them.

I have used this workaround to help silence the errors. Insert at the beginning of your plugin script:

error_reporting(E_ALL & ~E_NOTICE & ~E_WARNING);

Normal error reporting should resume outside scope of the script.