Paid Memberships Pro - Show login form when members are logged out (simple example)

show_login_form.php

<?php
//copy lines 4 - 9 into custom plugins file or functions.php

function pmpro_show_login_form(){
  //show a simple login form if users are logged out and a post/page requires membership
   return wp_login_form();
}

add_filter('pmpro_not_logged_in_text_filter', 'pmpro_show_login_form');

?>