Title: 'Undefined variable' message on page Last modified: August 22, 2016 --- # 'Undefined variable' message on page * Resolved [cmeers](https://wordpress.org/support/users/cmeers/) * (@cmeers) * [11 years, 6 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/) * Hi, the plugin works great, with the exception of getting messages output onto the pages that include a thumbnail gallery. I deactivated every developer/debug plugin but kept getting the messages. * After initially publishing a thumbnail gallery, I get a page with readout like this: * **Notice: Undefined index: name in /home/whitney/public_html/14_wp/wp-content/ plugins/foothumbnails-for-galleries/includes/metaboxes/class.cmb-meta-box.php on line 332** * Warning: Cannot modify header information – headers already sent by (output started at /home/whitney/public_html/14_wp/wp-content/plugins/foothumbnails-for-galleries/ includes/metaboxes/class.cmb-meta-box.php:332) in /home/whitney/public_html/14_wp/ wp-includes/pluggable.php on line 1179 * Then on [page](http://www.whitneydesign.net/14_wp/print/) itself, a readout like this: * **Notice: Undefined variable: post_id in /home/whitney/public_html/14_wp/wp-content/ plugins/foothumbnails-for-galleries/includes/shortcode.php on line 12** * Notice: Undefined variable: ftg_layout in /home/whitney/public_html/14_wp/wp- content/plugins/foothumbnails-for-galleries/includes/shortcode.php on line 13 * Notice: Undefined variable: ftg_title in /home/whitney/public_html/14_wp/wp-content/ plugins/foothumbnails-for-galleries/includes/shortcode.php on line 14 * Thanks in advance for helping me with this! * [https://wordpress.org/plugins/foothumbnails-for-galleries/](https://wordpress.org/plugins/foothumbnails-for-galleries/) Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Author [Matt Cromwell](https://wordpress.org/support/users/webdevmattcrom/) * (@webdevmattcrom) * [11 years, 5 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569741) * Hi there, thanks for the heads up. Can you tell me a little about your WordPress environment so I can try to duplicate this problem? Can you post a link to a screenshot of all your active plugins for example? What version of WordPress are you using? That would help me duplicate the problem. Thanks! * Thread Starter [cmeers](https://wordpress.org/support/users/cmeers/) * (@cmeers) * [11 years, 5 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569779) * Thanks for reply, [@webdevmattcrom](https://wordpress.org/support/users/webdevmattcrom/). * I finally remembered I had switched the ‘false’ in define(‘WP_DEBUG’, false) to ‘true’ in ‘wp-config.php’ * Plugin Author [Matt Cromwell](https://wordpress.org/support/users/webdevmattcrom/) * (@webdevmattcrom) * [11 years, 4 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569834) * Thanks for the update, regardless, the plugin shouldn’t be throwing those errors with debug turned on. * I’m currently working on a pretty serious update to this. Watch for it within the next couple weeks. * Thanks! * [talyiana](https://wordpress.org/support/users/talyiana/) * (@talyiana) * [11 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569842) * Hi there, * Unfortunately this plugin is not working for me and I would SO LOVE to get this working:) The thumbnail gallery is not showing on the page where it should be and the exact same thing is happening to me as the user cmeer wrote above. Here is the output I am getting on the pages where the thumbnail should be (I also have debug turned on): * Notice: Undefined variable: post_id in /hermes/waloraweb064/b799/hoc.codyman/ snc/wp-content/plugins/foothumbnails-for-galleries/includes/shortcode.php on line 12 Notice: Undefined variable: ftg_layout in /hermes/waloraweb064/b799/hoc. codyman/snc/wp-content/plugins/foothumbnails-for-galleries/includes/shortcode. php on line 13 Notice: Undefined variable: ftg_title in /hermes/waloraweb064/ b799/hoc.codyman/snc/wp-content/plugins/foothumbnails-for-galleries/includes/ shortcode.php on line 14 * You can take a look at the page by first going to [http://www.stnickscloset.com/private](http://www.stnickscloset.com/private) and then going to [http://www.stnickscloset.com/?page_id=742](http://www.stnickscloset.com/?page_id=742) * Here is a link to a screenshot of all the plugins currently installed: [http://aboutpeachtreecity.com/junk/plugins.jpg](http://aboutpeachtreecity.com/junk/plugins.jpg) * [talyiana](https://wordpress.org/support/users/talyiana/) * (@talyiana) * [11 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569843) * PS I have WordPress 4.1.1… Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘'Undefined variable' message on page’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/foothumbnails-for-galleries_696868. svg) * [FooThumbnail Gallery](https://wordpress.org/plugins/foothumbnails-for-galleries/) * [Frequently Asked Questions](https://wordpress.org/plugins/foothumbnails-for-galleries/#faq) * [Support Threads](https://wordpress.org/support/plugin/foothumbnails-for-galleries/) * [Active Topics](https://wordpress.org/support/plugin/foothumbnails-for-galleries/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/foothumbnails-for-galleries/unresolved/) * [Reviews](https://wordpress.org/support/plugin/foothumbnails-for-galleries/reviews/) * 5 replies * 3 participants * Last reply from: [talyiana](https://wordpress.org/support/users/talyiana/) * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/undefined-variable-message-on-page/#post-5569843) * Status: resolved