gistfile1.php

<?php
  $queryArgs = array( 'showposts' => 3,
                      'what_to_show' => 'posts',
                      'nopaging' => 0,
                      'orderby' => 'rand' 
                    );
  function filter_where($where = '') {
        $start_date = date("Y-m-d");
        $end_date = date("Y-m-d", strtotime('-365 days'));
        //$where .= " AND post_date >= `".$start_date."` AND post_date <= `".$end_date."`";
        $where .= " AND post_date BETWEEN `".$start_date."` AND `".$end_date."`";
    return $where;
  }
  add_filter('posts_where', 'filter_where');

  $r = get_posts($queryArgs);
  //query_posts($queryArgs);
?>