'Update user meta after cf7 submit WP

I want to substract 1 from user meta after cf7 form submittion. I've got this function but it doesn't work:

$user_id = get_current_user_id();
add_action( 'wpcf7_before_send_mail', 'process_contact_form_data' );
function process_contact_form_data( $contact_data ){

   $user_last = get_user_meta( $user_id, 'QuestionAvailiable', true ); 
    $user_last_sum =  $user_last - 1;
    update_user_meta( $user_id, 'QuestionAvailiable', $user_last_sum);          
}

QuestionAvailiable is still 3 after form submit, not 2. What's wrong?

phpwordpressformsmetadatacontact-form-7


Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source

Related Questions