JetFormBuilder Check if user password matches entered password

check_iss_pswd_unique.php

<?php

/**
  * To get all the values of the fields in the form, you can use the expression:
  * jet_fb_request_handler()->get_request() or $context->get_request()
 \*
  * If the field is located in the middle of the repeater, then only
  * jet_fb_request_handler()->get_request(), but $context->get_request()
  * will return the values of all fields of the current repeater element
 \*
  * @param $value mixed
  * @param $context \Jet_Form_Builder\Request\Parser_Context
 \*
  * @return bool
 */
function jet_fb_v_check_iss_pswd_unique( $value, $context ): bool {
    if ( ! is_string( $value ) || empty( $value ) ) {
        return false;
    }
    $user_id = get_current_user_id();
    $user    = get_user_by( 'ID', $user_id );

    if ( ! ( $user instanceof \WP_User ) ) {
        return false;
    }

    return (bool) wp_check_password( $value, $user->user_pass, $user->ID );
}