Title: php error Last modified: June 26, 2023 --- # php error * Resolved [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/) * Hi Fabio, I just found your plugin. It works like a charm, but I get a nasty php error I don’t know how to solve: **Warning**: Attempt to read property “ term_id” on bool in **/home/xxx/Local Sites/gates/app/public/wp-content/plugins/ list-all-posts-by-authors-nested-categories-and-titles/include/ACT-displayer. php** on line **280**I’m working on Local by Flywheel with Elementor on Ubuntu.( no live example).Here’s a screenshot: [https://snipboard.io/J5vriG.jpg](https://snipboard.io/J5vriG.jpg) How do I solve this problem? - This topic was modified 2 years, 9 months ago by [josflachs](https://wordpress.org/support/users/josflachs/). Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/php-error-599/page/2/?output_format=md) [→](https://wordpress.org/support/topic/php-error-599/page/2/?output_format=md) * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16847556) * I will have a look, but it is a Warning, so it doesn’t hurt. In the meantime, disable WP_DEBUG in your `wp-config.php` * What version of php and WordPress are you running? - This reply was modified 2 years, 9 months ago by [fmarzocca](https://wordpress.org/support/users/fmarzocca/). * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16847663) * Be sure that each of your Category has a slug. * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16847772) * Woa! You’re fast! All categories have a slug (just checked to make sure)WP: 6.2.2PHP: 8.1.9wpconfig: define( ‘WP_DEBUG’, false ); - This reply was modified 2 years, 9 months ago by [josflachs](https://wordpress.org/support/users/josflachs/). * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848037) * Mmmh. I haven’t tried yet with php 8… * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848059) * Can you pls post the Shortcode you are using to display that page? * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848125) * `[ACT-list show='Author']` * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848151) * This is mine, working: `[ACT-list show="Author" exclude="News" reverse-date=1 postdate=1 ]`Don’t you have unpublished articles, or orphaned/unclassified categories? The error is coming from an invalid category, but this is the first time I see it. Don’t you have the chance to switch to PHP 7.x for a test? * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848213) * In any case, if WP_DEBUG is false, it must not display that warning. * `define('WP_DEBUG', FALSE);` - This reply was modified 2 years, 9 months ago by [fmarzocca](https://wordpress.org/support/users/fmarzocca/). * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848638) * I switch to the **obsolete** 7.4 version: that works. 8.02 gave me the error again. So it has something to do with the +8 PHP versions. The WP_DEBUG is false, but it does show the error nevertheless. * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16848814) * Ok. Thank you! * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16850624) * I’m not going live with a site on php 7.4. When do you think the plugin will be upgraded? - This reply was modified 2 years, 9 months ago by [josflachs](https://wordpress.org/support/users/josflachs/). * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16850943) * At the moment I have no plans to update to php 8, but can you pls make a test? Create an empty Category (i.e.: test) and then exclude that category from your shortcode: `[ACT-list show="Author" exclude="test"]` * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16850972) * It works! Thanks Fabio, you’re great. * Plugin Author [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * (@fmarzocca) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16851093) * Can I take advantage of your courtesy? If you edit the file `ACT-displayer.php` * in: `wp-content/plugins/list-all-posts-by-authors-nested-categories-and-titles/ include` go to the very end of the file and replace the function `get_cats_by_slug` with this one: * `function get_cats_by_slug($catslugs) { $catids = array(); foreach($catslugs as $slug) { if (!get_category_by_slug($slug) ) break; $catids[] = get_category_by_slug( $slug)->term_id; } return $catids;} * Then remove the `exclude` in the shortcode and let me know if it works. In such a case I will deploy a new version. * Thread Starter [josflachs](https://wordpress.org/support/users/josflachs/) * (@josflachs) * [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/#post-16851256) * Of course, I just did it and it works fine. Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/php-error-599/page/2/?output_format=md) [→](https://wordpress.org/support/topic/php-error-599/page/2/?output_format=md) The topic ‘php error’ is closed to new replies. * ![](https://ps.w.org/list-all-posts-by-authors-nested-categories-and-titles/assets/ icon-256x256.jpg?rev=1070306) * [List all posts by Authors, nested Categories and Titles](https://wordpress.org/plugins/list-all-posts-by-authors-nested-categories-and-titles/) * [Frequently Asked Questions](https://wordpress.org/plugins/list-all-posts-by-authors-nested-categories-and-titles/#faq) * [Support Threads](https://wordpress.org/support/plugin/list-all-posts-by-authors-nested-categories-and-titles/) * [Active Topics](https://wordpress.org/support/plugin/list-all-posts-by-authors-nested-categories-and-titles/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/list-all-posts-by-authors-nested-categories-and-titles/unresolved/) * [Reviews](https://wordpress.org/support/plugin/list-all-posts-by-authors-nested-categories-and-titles/reviews/) * 16 replies * 2 participants * Last reply from: [fmarzocca](https://wordpress.org/support/users/fmarzocca/) * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/php-error-599/page/2/#post-16851317) * Status: resolved