Title: Errors in PHP logs Last modified: April 27, 2023 --- # Errors in PHP logs * Resolved [jperksmower](https://wordpress.org/support/users/jperksmower/) * (@jperksmower) * [3 years, 1 month ago](https://wordpress.org/support/topic/errors-in-php-logs/) * Hello, * We are seeing lots of error warnings from this plugin in our PHP runtime logs. Please see below examples: * PHP message: Warning: foreach() argument must be of type array|object, null given in /var/www/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 543 [ URL_REMOVED/wp-json/contact-form-7/v1/contact-forms/278/feedback?_locale=user][ wp-includes/class-wp-hook.php:308 {closure}(), wp-includes/plugin.php:205 WP_Hook- >apply_filters(), wp-content/plugins/contact-form-7/includes/rest-api.php:359 apply_filters(‘wpcf7_feedback_response’), wp-includes/rest-api/class-wp-rest- server.php:1181 wpcf7_rest_create_feedback(), wp-includes/rest-api/class-wp-rest- server.php:1028 WP_REST_Server->respond_to_request(), wp-includes/rest-api/class- wp-rest-server.php:442 WP_REST_Server->dispatch(), wp-includes/rest-api.php:410 WP_REST_Server->serve_request(), wp-includes/class-wp-hook.php:308 rest_api_loaded(), wp-includes/class-wp-hook.php:332 WP_Hook->apply_filters(), wp-includes/plugin. php:565 WP_Hook->do_action(), wp-includes/class-wp.php:399 do_action_ref_array(), wp-includes/class-wp.php:780 WP->parse_request(), wp-includes/functions.php:1334 WP->main(), wp-blog-header.php:16 wp(), index.php:17 require(‘wp-blog-header. php’)] * PHP message: Warning: Undefined array key “invalid_fields” in /var/www/wp-content/ plugins/cf7-conditional-fields/cf7cf.php on line 543 * [URL_REMOVED/wp-json/contact-form-7/v1/contact-forms/219/feedback?_locale=user] * [wp-includes/class-wp-hook.php:308 {closure}(), wp-includes/plugin.php:205 WP_Hook- >apply_filters(), wp-content/plugins/contact-form-7/includes/rest-api.php:359 apply_filters(‘wpcf7_feedback_response’), wp-includes/rest-api/class-wp-rest- server.php:1181 wpcf7_rest_create_feedback(), wp-includes/rest-api/class-wp-rest- server.php:1028 WP_REST_Server->respond_to_request(), wp-includes/rest-api/class- wp-rest-server.php:442 WP_REST_Server->dispatch(), wp-includes/rest-api.php:410 WP_REST_Server->serve_request(), wp-includes/class-wp-hook.php:308 rest_api_loaded(), wp-includes/class-wp-hook.php:332 WP_Hook->apply_filters(), wp-includes/plugin. php:565 WP_Hook->do_action(), wp-includes/class-wp.php:399 do_action_ref_array(), wp-includes/class-wp.php:780 WP->parse_request(), wp-includes/functions.php:1334 WP->main(), wp-blog-header.php:16 wp(), index.php:17 require(‘wp-blog-header. php’)] * We are currently using Contact Form 7 version 5.4 and Conditional Fields for Contact Form 7 version 2.3.7 on WordPress 6.2 PHP version 8. Can you please let us know what’s needed to fix the warnings? * ~James Viewing 2 replies - 1 through 2 (of 2 total) * Plugin Author [Jules Colle](https://wordpress.org/support/users/jules-colle/) * (@jules-colle) * [3 years, 1 month ago](https://wordpress.org/support/topic/errors-in-php-logs/#post-16695307) * This is hard to reproduce. Can you figure out which form triggers the error, and maybe simplify the code? It would be cool if I could get a step by step plan how to reproduce the error starting from a clean WP installation. * [ziegel](https://wordpress.org/support/users/ziegel/) * (@ziegel) * [3 years, 1 month ago](https://wordpress.org/support/topic/errors-in-php-logs/#post-16715083) * Hi [@jules-colle](https://wordpress.org/support/users/jules-colle/) and [@jperksmower](https://wordpress.org/support/users/jperksmower/), * I have also gotten errors in the PHP error log. Debug mod was not enabled. The error messages were as following: * ```wp-block-code [05-May-2023 12:55:45|] PHP Warning: Undefined array key "_wpcf7cf_hidden_group_fields" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 260 [05-May-2023 12:55:45|] PHP Warning: Undefined array key "_wpcf7cf_hidden_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 269 [05-May-2023 12:55:45|] PHP Warning: Undefined array key "_wpcf7cf_visible_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 270 [05-May-2023 12:55:45|] PHP Warning: Undefined array key "_wpcf7cf_repeaters" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 271 [05-May-2023 12:55:45|] PHP Warning: Undefined array key "_wpcf7cf_steps" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 272 [05-May-2023 15:26:31|] PHP Warning: Undefined array key "_wpcf7cf_hidden_group_fields" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 260 [05-May-2023 15:26:31|] PHP Warning: Undefined array key "_wpcf7cf_hidden_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 269 [05-May-2023 15:26:31|] PHP Warning: Undefined array key "_wpcf7cf_visible_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 270 [05-May-2023 15:26:31|] PHP Warning: Undefined array key "_wpcf7cf_repeaters" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 271 [05-May-2023 15:26:31|] PHP Warning: Undefined array key "_wpcf7cf_steps" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 272 [05-May-2023 20:20:11|] PHP Warning: Undefined array key "_wpcf7cf_hidden_group_fields" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 260 [05-May-2023 20:20:11|] PHP Warning: Undefined array key "_wpcf7cf_hidden_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 269 [05-May-2023 20:20:11|] PHP Warning: Undefined array key "_wpcf7cf_visible_groups" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 270 [05-May-2023 20:20:11|] PHP Warning: Undefined array key "_wpcf7cf_repeaters" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 271 [05-May-2023 20:20:11|] PHP Warning: Undefined array key "_wpcf7cf_steps" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/cf7-conditional-fields/cf7cf.php on line 272 ``` Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Errors in PHP logs’ is closed to new replies. * ![](https://ps.w.org/cf7-conditional-fields/assets/icon-256x256.png?rev=2072595) * [Conditional Fields for Contact Form 7](https://wordpress.org/plugins/cf7-conditional-fields/) * [Frequently Asked Questions](https://wordpress.org/plugins/cf7-conditional-fields/#faq) * [Support Threads](https://wordpress.org/support/plugin/cf7-conditional-fields/) * [Active Topics](https://wordpress.org/support/plugin/cf7-conditional-fields/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/cf7-conditional-fields/unresolved/) * [Reviews](https://wordpress.org/support/plugin/cf7-conditional-fields/reviews/) * 2 replies * 3 participants * Last reply from: [ziegel](https://wordpress.org/support/users/ziegel/) * Last activity: [3 years, 1 month ago](https://wordpress.org/support/topic/errors-in-php-logs/#post-16715083) * Status: resolved