Title: PHP 8 Error
Last modified: July 20, 2021

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# PHP 8 Error

 *  [321abc](https://wordpress.org/support/users/deraxia/)
 * (@deraxia)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/php-8-error-8/)
 * Doesn’t work on PHP 8, throws an error when Contact Form 7 is submitted. Using
   latest using versions of both plugins:
 *     ```
       Warning: Undefined array key 0 in C:\xampppp\htdocs\wp-content\plugins\advanced-cf7-db\includes\vsz-cf7-db-function.php on line 137
   
       Fatal error: Uncaught ValueError: Path cannot be empty in C:\xampppp\htdocs\wp-content\plugins\advanced-cf7-db\includes\vsz-cf7-db-function.php:148 Stack trace: #0 C:\xampppp\htdocs\wp-content\plugins\advanced-cf7-db\includes\vsz-cf7-db-function.php(148): copy('', 'C:\\xampppp\\htdo...') #1 C:\xampppp\htdocs\wp-includes\class-wp-hook.php(292): vsz_cf7_modify_form_before_insert_in_cf7_vdata_entry(Object(stdClass)) #2 C:\xampppp\htdocs\wp-includes\plugin.php(212): WP_Hook->apply_filters(Object(stdClass), Array) #3 C:\xampppp\htdocs\wp-content\plugins\advanced-cf7-db\includes\vsz-cf7-db-function.php(34): apply_filters('vsz_cf7_modify_...', Object(stdClass)) #4 C:\xampppp\htdocs\wp-includes\class-wp-hook.php(294): vsz_cf7_before_send_email(Object(stdClass)) #5 C:\xampppp\htdocs\wp-includes\class-wp-hook.php(316): WP_Hook->apply_filters('', Array) #6 C:\xampppp\htdocs\wp-includes\plugin.php(551): WP_Hook->do_action(Array) #7 C:\xampppp\htdocs\wp-content\plugins\contact-form-7\includes\submission.php(458): do_action_ref_array('wpcf7_before_se...', Array) #8 C:\xampppp\htdocs\wp-content\plugins\contact-form-7\includes\submission.php(81): WPCF7_Submission->before_send_mail() #9 C:\xampppp\htdocs\wp-content\plugins\contact-form-7\includes\submission.php(25): WPCF7_Submission->proceed() #10 C:\xampppp\htdocs\wp-content\plugins\contact-form-7\includes\contact-form.php(763): WPCF7_Submission::get_instance(Object(WPCF7_ContactForm), Array) #11 C:\xampppp\htdocs\wp-content\plugins\contact-form-7\includes\controller.php(25): WPCF7_ContactForm->submit() #12 C:\xampppp\htdocs\wp-includes\class-wp-hook.php(290): wpcf7_control_init() #13 C:\xampppp\htdocs\wp-includes\class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #14 C:\xampppp\htdocs\wp-includes\plugin.php(551): WP_Hook->do_action(Array) #15 C:\xampppp\htdocs\wp-includes\class-wp.php(388): do_action_ref_array('parse_request', Array) #16 C:\xampppp\htdocs\wp-includes\class-wp.php(750): WP->parse_request('') #17 C:\xampppp\htdocs\wp-includes\functions.php(1291): WP->main('') #18 C:\xampppp\htdocs\wp-blog-header.php(16): wp() #19 C:\xampppp\htdocs\index.php(17): require('C:\\xampppp\\htdo...') #20 {main} thrown in C:\xampppp\htdocs\wp-content\plugins\advanced-cf7-db\includes\vsz-cf7-db-function.php on line 148
       ```
   

The topic ‘PHP 8 Error’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [321abc](https://wordpress.org/support/users/deraxia/)
 * Last activity: [4 years, 10 months ago](https://wordpress.org/support/topic/php-8-error-8/)
 * Status: not resolved