A super clean pagination function

pagination.php

<?php
/* pagination($limit, $page, $total)
Designed for clean urls with a /slug/page/2 format
*/
function pagination($current_url, $limit = 10, $page = 1, $total = 100) {
  if($total > $limit && $page !== 'all') {
    // pagination
    $prevpage = ($page - 1 > 0 && $page > 2 ? '/page/'. ($page - 1) : '');
    $prev = preg_replace('/\/page\/[0-9]*/', $prevpage, $current_url);
    $nextpage = ($page * $limit < $total ? '/page/'. ($page + 1) : '');
    $next = ($page > 1 ? preg_replace('/\/page\/[0-9]*/', $nextpage, $current_url) : $current_url . $nextpage);
    $all = preg_replace('/\/page\/[0-9]*/', '', $current_url). '/page/all';
    echo '<div class="pagination">';
    echo ($page - 1 > 0 ? '<a class="prev" href="'.$prev.'">Prev</a>' : '');
    echo '<span>'. $page .' of '. ceil($total / $limit) .'</span>';
    echo ($page * $limit < $total ? '<a class="next" href="'.$next.'">Next</a>' : '');
    echo ($page !== 'all' ? '<a href="'. $all .'">View All</a>' : '');
    echo '</div><!-- .pagination -->';
  }
}
?>