catch-cf7-values.php

<?php 

function contactform7_before_send_mail( $form_to_DB ) {

    global $wpdb;

    $form_to_DB = WPCF7_Submission::get_instance();

    if ( $form_to_DB ) 
        $formData = $form_to_DB->get_posted_data();


    $name = $formData['name'];
    
    $wpdb->insert( 'wp_cf7_test', array( 'name' =>; $name ), array( '%s' ) );

}
remove_all_filters ('wpcf7_before_send_mail');
add_action( 'wpcf7_before_send_mail', 'contactform7_before_send_mail' );