Title: Undefined variable Last modified: February 6, 2024 --- # Undefined variable * ResolvedModerator [tobifjellner (Tor-Bjorn “Tobi” Fjellner)](https://wordpress.org/support/users/tobifjellner/) * (@tobifjellner) * [2 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-98/) * Hi, * When troubleshooting a client’s site, I stumbled upon a PHP warning that may be good for you to handle: * `PHP Warning: Undefined variable $open_graphite_head in .../public_html/wp-content/ plugins/open-graphite/_open_graphite.php on line 619` * Cheers! Viewing 2 replies - 1 through 2 (of 2 total) * [chapmangeo](https://wordpress.org/support/users/chapmangeo/) * (@chapmangeo) * [2 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-98/#post-17468873) * It’s a path through ‘openghead()’ that doesn’t initialize $open_graphite_head. * ```wp-block-code /* Open Graph Ouput into */ add_action('wp_head', 'openghead', $output_priority); function openghead() { /* Homepage */ if ( is_home() || is_front_page() ) { $open_graphite_head = ' ' . "\n\n"; /* Other pages, posts and custom post types */ } else { if (isset($ogoptions['post_types']) && in_array(get_post_type(), $ogoptions['post_types']) || class_exists( 'WooCommerce' )) { $open_graphite_head = ' ' . "\n\n"; } /***** This point allows $open_graphite_head to be unset if: is_home() == false is_front_page() == false class_exists( 'WooCommerce' ) == false isset($ogoptions['post_types']) == false --OR-- in_array(get_post_type(), $ogoptions['post_types']) == false *****/ } echo $open_graphite_head; } ``` * Plugin Author [Rocket Apps](https://wordpress.org/support/users/mikeyott/) * (@mikeyott) * [2 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-98/#post-17469458) * Apologies for the late response. This is now sorted. Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Undefined variable’ is closed to new replies. * ![](https://ps.w.org/open-graphite/assets/icon-256x256.png?rev=2106847) * [Open Graphite](https://wordpress.org/plugins/open-graphite/) * [Frequently Asked Questions](https://wordpress.org/plugins/open-graphite/#faq) * [Support Threads](https://wordpress.org/support/plugin/open-graphite/) * [Active Topics](https://wordpress.org/support/plugin/open-graphite/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/open-graphite/unresolved/) * [Reviews](https://wordpress.org/support/plugin/open-graphite/reviews/) * 2 replies * 3 participants * Last reply from: [Rocket Apps](https://wordpress.org/support/users/mikeyott/) * Last activity: [2 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-98/#post-17469458) * Status: resolved