php 8.0 incompatibility

  • when attempting to drag the posts-by-tag widget into a widget…then attempting to save, the admin-ajax call throws a 502 bad gateway. this only happens in my staging environment which has been upgraded to php8.1.2. it still appears to work as designed on servers running php7.4.25

    the following errors are logged by the server…
    PHP Warning: Undefined array key “current_tags” in /var/www/digest/wp-content/plugins/posts-by-tag/include/class-tagwidget.php on line 114
    PHP Warning: Undefined array key “current_page_tags” in /var/www/digest/wp-content/plugins/posts-by-tag/include/class-tagwidget.php on line 115
    …
    …
    PHP Warning: Undefined variable $disable in /var/www/digest/wp-content/plugins/posts-by-tag/include/class-tagwidget.php on line 385

    any ideas? would like to be able to upgrade all my servers. thanks…

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