Title: PHP Error with 7.3 Last modified: December 16, 2018 --- # PHP Error with 7.3 * [Venutius](https://wordpress.org/support/users/venutius/) * (@venutius) * [7 years, 5 months ago](https://wordpress.org/support/topic/php-error-with-7-3/) * Having upgraded to PHP 7.3 I’m getting the following errors: * NOTICE: wp-includes/class-wp-comment-query.php:853 – compact(): Undefined variable: limits require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader. php’), include(‘/themes/graphene/page.php’), get_template_part, locate_template, load_template, require(‘/themes/graphene/loop-page.php’), the_content, apply_filters(‘ the_content’), WP_Hook->apply_filters, bp_replace_the_content, apply_filters(‘ bp_replace_the_content’), WP_Hook->apply_filters, BP_Members_Theme_Compat->single_dummy_content, bp_buffer_template_part, bp_get_template_part, bp_locate_template, load_template, require(‘/plugins/buddypress/bp-templates/bp-legacy/buddypress/members/single/ home.php’), bp_get_template_part, bp_locate_template, load_template, require(‘/ themes/graphene-child/buddypress/members/single/profile.php’), bp_get_template_part, bp_locate_template, load_template, require(‘/plugins/buddypress/bp-templates/ bp-legacy/buddypress/activity/activity-loop.php’), bp_has_activities, BP_Activity_Template- >__construct, bp_activity_get, BP_Activity_Activity::get, apply_filters(‘bp_activity_get_where_conditions’), WP_Hook->apply_filters, bp_docs_access_protection_for_activity_feed, BP_Docs_Access_Query- >get_comment_ids, get_comments, WP_Comment_Query->query, WP_Comment_Query->get_comments, WP_Comment_Query->get_comment_ids, compact NOTICE: wp-includes/class-wp-comment- query.php:853 – compact(): Undefined variable: groupby require(‘wp-blog-header. php’), require_once(‘wp-includes/template-loader.php’), include(‘/themes/graphene/ page.php’), get_template_part, locate_template, load_template, require(‘/themes/ graphene/loop-page.php’), the_content, apply_filters(‘the_content’), WP_Hook- >apply_filters, bp_replace_the_content, apply_filters(‘bp_replace_the_content’), WP_Hook->apply_filters, BP_Members_Theme_Compat->single_dummy_content, bp_buffer_template_part, bp_get_template_part, bp_locate_template, load_template, require(‘/plugins/buddypress/ bp-templates/bp-legacy/buddypress/members/single/home.php’), bp_get_template_part, bp_locate_template, load_template, require(‘/themes/graphene-child/buddypress/ members/single/profile.php’), bp_get_template_part, bp_locate_template, load_template, require(‘/plugins/buddypress/bp-templates/bp-legacy/buddypress/activity/activity- loop.php’), bp_has_activities, BP_Activity_Template->__construct, bp_activity_get, BP_Activity_Activity::get, apply_filters(‘bp_activity_get_where_conditions’), WP_Hook->apply_filters, bp_docs_access_protection_for_activity_feed, BP_Docs_Access_Query- >get_comment_ids, get_comments, WP_Comment_Query->query, WP_Comment_Query->get_comments, WP_Comment_Query->get_comment_ids, compact * You can see from the trace that these stem from BP Docs, the PHP manual for compact() has a note to say from 7.3 strings that are not set will be warned. I’m uncertain if this is a BP Docs issue or if it’s something missing in WP since I can’t see a problem with the originating get_comments() call. Viewing 7 replies - 1 through 7 (of 7 total) * Plugin Author [David Cavins](https://wordpress.org/support/users/dcavins/) * (@dcavins) * [7 years, 5 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-10995055) * Thanks, [@venutius](https://wordpress.org/support/users/venutius/), for flagging this issue. We’ll look into it. 🙂 * [DrLightman](https://wordpress.org/support/users/drlightman/) * (@drlightman) * [7 years, 2 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11368303) * It’s a WP core issue. * [DrLightman](https://wordpress.org/support/users/drlightman/) * (@drlightman) * [7 years, 2 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11368308) * It’s an issue in WP core, at least 4.9.10 that I’m using * [Alex](https://wordpress.org/support/users/hiphoptimespbru/) * (@hiphoptimespbru) * [6 years, 10 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11770434) * Please help to fix this issue. Thank you in advance - This reply was modified 6 years, 10 months ago by [Alex](https://wordpress.org/support/users/hiphoptimespbru/). * Plugin Author [David Cavins](https://wordpress.org/support/users/dcavins/) * (@dcavins) * [6 years, 10 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11771540) * I just set up a fresh test installation using PHP 7.3 and the latest WP, BP and BP Docs and I’m not encountering any errors or even notices. * If someone is seeing errors still, please let me know how I can recreate. * Thanks! * -David * [Andrew Woods](https://wordpress.org/support/users/awoods/) * (@awoods) * [6 years, 9 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11871822) * It happens to me using PHP 7.3 and WordPress 4.9.10. * It is a core issue. That said. I fixed it locally by adding the following code just belown line 820 of wp-includes/class-wp-comment-query.php * $groupby = ”; * It may not seem like a big deal, but it’s a very visible issue when you use comments on your site. This error notice also appears in the dashboard. - This reply was modified 6 years, 9 months ago by [Andrew Woods](https://wordpress.org/support/users/awoods/). Reason: corrected my wordpress version for accuracy * Plugin Author [David Cavins](https://wordpress.org/support/users/dcavins/) * (@dcavins) * [6 years, 9 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11871938) * Thanks! It sounds like the fix is to upgrade to a newer version of WP, then? * -David Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘PHP Error with 7.3’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/buddypress-docs.svg) * [BuddyPress Docs](https://wordpress.org/plugins/buddypress-docs/) * [Support Threads](https://wordpress.org/support/plugin/buddypress-docs/) * [Active Topics](https://wordpress.org/support/plugin/buddypress-docs/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/buddypress-docs/unresolved/) * [Reviews](https://wordpress.org/support/plugin/buddypress-docs/reviews/) * 7 replies * 5 participants * Last reply from: [David Cavins](https://wordpress.org/support/users/dcavins/) * Last activity: [6 years, 9 months ago](https://wordpress.org/support/topic/php-error-with-7-3/#post-11871938) * Status: not resolved