A complete DB/JSON backend

<?php
  include './db.inc';
  include './db_people.inc';

  $pep = new people;

  header("Content-type: application/json");

  switch($_REQUEST['action']) {
    case 'markers':
      $all = $pep->load();
      echo json_encode(array('people'=>$all)); 
      break;
  }
?>