Router for light PHP applications

router.php

<?php
// router.php
if (0 === strpos($_SERVER['REQUEST_URI'], '/bower_components/')) {
  $this_page = $_SERVER['REQUEST_URI'];
  if (strpos($this_page, "?") !== false) {
    $exploded = explode("?", $this_page);
    $this_page = reset($exploded);
  }

  readfile('..' . $this_page);
  return true;
}

return false;
?>