Break up PHP Pagination links

I have the following method that creates and returns markup for my pagination links in PHP.

public function getPaginationLinks($options) {
    if($options['total_pages'] > 1) {
        $markup = '<div class="pagination">';

        if($options['page'] > 1) {
            $markup .= '<a href="?page=' . ($options['page'] - 1) . ((isset($options['order_by'])) ? "&sort=" . $options['order_by'] : "") . '">< prev</a>';
        }       

        for($i = 1; $i <= $options['total_pages']; $i++) {

            if($options['page'] != $i) {
                $markup .= '<a href="?page='. $i . ((isset($options['order_by'])) ? "&sort=" . $options[开发者_如何学JAVA'order_by'] : "") . '">' . $i . '</a>';
            }
            else {
                $markup .= '<span class="current">' . $i . '</span>';
            }
        }

        if($options['page'] < $options['total_pages']) {
            $markup .= '<a href="?page=' . ($options['page'] + 1) . ((isset($options['order_by'])) ? "&sort=" . $options['order_by'] : "") . '">next ></a>';
        }

        $markup .= '</div>';

        return $markup;
    }
    else {
        return false;
    }
}

I just recently discovered (to my surprise) that i had reached 70+ pages which means that there are now 70+ links showing up at the bottom..

I'm wondering if someone can help me break this up.. I'm not sure how most pagination works as far as showing the numbers if im on say.. page 30, ideas?

You just display the current page plus the previous and the following x (say 4) pages.

If you're on Page 1:

1 2 3 4 5

Page 35:

31 32 33 34 35 36 37 38 39

Page 70:

66 67 68 69 70

You could also add a quick link to the first and last page using « and » for instance.

Example:

$x = 4;

for ($i = $currentPage - $x; $i < $currentPage; $i++)
{
    if ($i >= 1) { /* show link */}
    else { /* show ellipsis and fix counter */ $i = 1; }
}

/* show current page number without link */

for ($i = $currentPage + 1; $i < $currentPage + $x; $i++)
{
    if ($i <= $totalPages) { /* show link */}
    else { /* show ellipsis and break */ break; }
}

You can also implement Infinite History / Pagination, which is uber cool. =)

UPDATE: A more elegant version of this @ Codepad.

You could do (on page 15)

[View Previous] 12 13 14 [15] 15 17 18 [View More]

Where the [View More] link fetches the rest (or just a few more) page links. This keeps things uncluttered while allowing the user to navigate all the pages.

Example (after clicking View Previous)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 [15] 15 17 18 [View More]

or (just show a few more) [View More] 7 8 9 10 11 12 13 14 [15] 15 17 18 [View More]

When I say "fetch" I mean use javascript to create links to the other pages w/o reloading the page

Consider "logarithmic pagination", as described here (PHP code included):

How to do page navigation for many, many pages? Logarithmic page navigation

You may also look at Zend_Paginator, which handles lots of these types of things for you.