function.php

<?php
/**
 *
 */

function force_template_redirect() {
    if ( (is_page( 'acessar-conta' ) || is_page( 'criar-uma-conta' ))
          && is_user_logged_in() ) {
        wp_redirect( home_url( '/meus-dados/' ) );
        exit();
    }

}
add_action( 'template_redirect', 'force_template_redirect' );

function force_panel_admin_init() {
    if ( current_user_can( 'subscriber' ) && !defined( 'DOING_AJAX' ) ) {
        wp_redirect( home_url('/historico-financeiro/') );
        exit;
    }
}
add_action( 'admin_init', 'force_panel_admin_init' );

//------------------------------------------------------------------------------

/* */
function add_query_vars_filter( $vars ){
  $vars[] = "referrer_id";
  return $vars;
}
add_filter( 'query_vars', 'add_query_vars_filter' );

/* */
function custom_rewrite() {
  flush_rewrite_rules(false);
  add_rewrite_rule('^convite/([0-9]+)/?', 'index.php?page_id=13&referrer_id=$matches[1]', 'top');
}
add_action('init', 'custom_rewrite');