pagination - 10 pages per page

Question

I have a pagination script that displays a list of all pages like so:
prev [1][2][3][4][5][6][7][8][9][10][11][12][13][14] next
But I would like to only show ten of the numbers at a time:
prev [3][4][5][6][7][8][9][10][11][12] next

How can I accomplish this? Here is my code so far:

<?php
/* Set current, prev and next page */
$page = (!isset($_GET['page']))? 1 : $_GET['page']; 
$prev = ($page - 1);
$next = ($page + 1);

/* Max results per page */
$max_results = 2;

/* Calculate the offset */
$from = (($page * $max_results) - $max_results);

/* Query the db for total results. 
   You need to edit the sql to fit your needs */
$result = mysql_query("select title from topics");

$total_results = mysql_num_rows($result);

$total_pages = ceil($total_results / $max_results);

$pagination = '';

/* Create a PREV link if there is one */
if($page > 1)
{
    $pagination .= '< a href="?page='.$prev.'">Previous</a> ';
}

/* Loop through the total pages */
for($i = 1; $i <= $total_pages; $i++)
{
    if(($page) == $i)
    {
        $pagination .= $i;
    }
    else
    {
        $pagination .= '< a href="index.php?page='.$i.'">'.$i.'</a>';
    }
}

/* Print NEXT link if there is one */
if($page < $total_pages)
{
    $pagination .= '< a hr_ef="?page='.$next.'"> Next</a>';
}

/* Now we have our pagination links in a variable($pagination) ready to
   print to the page. I pu it in a variable because you may want to
   show them at the top and bottom of the page */

/* Below is how you query the db for ONLY the results for the current page */
$result=mysql_query("select * from topics LIMIT $from, $max_results ");

while ($i = mysql_fetch_array($result))
{
    echo $i['title'].'<br />';
}
echo $pagination;
?> 

Answer 1

Have you had a look at Zend_Paginator?

Answer 2

If you just want a quick fix, you might try modifying your for loop a little. For example, you won't want to start at 1, and you won't necessarily want to loop while $i <= $total_pages.

Displaying an odd number of pagination links might make more sense: you would display the current page, then four to the left of it, and four to the right. Something like this:

for($i = $page_number - 4; $i <= $page_number + 4; $i++) {

but you would obviously need to do a little bit more to ensure you weren't displaying negative numbers, or displaying more links than there are pages.

Answer 3

10 next pages

for($i = $page + 1; $i <= min($page + 11, $total_pages); $i++)

or if you want 5 prev and 5 next

for($i = max(1, $page - 5); $i <= min($page + 5, $total_pages); $i++)