Truncate number of pages in pagination

Question

This might be a quite silly question, but I can\'t figure anything out that might help me go further. I\'m looking to shorten the number of NUMBERS in my page navigation.

Answer 1

What you might want to do is use the "logarithmic" pagination technique described in my answer here:

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

If you set LINKS_PER_STEP to a low value like 2 or 3, it'll produce very compact output.

Answer 2

This one shows two links before and two after the current requested link:

<div id="user_nav_bottom">
<?php
$current = $_GET['page'];
$last = count($pages)+1;
$curr0 = $current-2;
$curr1 = $current+2;
if ($curr0<=1) {
  $curr0 = 1;
  $curr1 = $last>5? 5 : $last;
}
if ($curr1>=$last) {
  $curr0 = $last-4 < 1 ? 1 : $last-4;
  $curr1 = $last;
}
// now print all links:
echo '<a href="imgit_images.php?page=1">&#171;</a> ';
for ($i=$curr0; $i<=$curr1; $i++) {
  $style = ($i==$current)? 'font-weight:bold':'';
  echo ' <a href="imgit_images.php?page='.$i.'" style="'.$style.'">'.$i.'</a> ';
}
echo '<a href="imgit_images.php?page='.$last.'">&#187;</a> ';
?>
</div>

This shows links like this: « 13 14 15 16 17 »
Imho it's not so difficult to add also first five and last five links by adding appropriate conditions.

Testing script here

Answer 3

Check this out: https://codereview.stackexchange.com/a/10292. This solution should solve your problem. I think its a very good approach.

Answer 4

This is a modified chunk of code I wrote for paging forums.

It's output isn't exactly how you showed but should just be a matter of tweaking.

<?php 
    //Set up vars

    $currentPage = isset($_GET["page"])? $_GET["page"] : 1;
    $numPages = count($pages);
    $numPages = 7;//cause I don't have the real var for testing

    $howMany = 1;
?>


<?php if ($numPages > 1): ?>
    <li>Page <?php echo $currentPage?> of <?php echo $numPages?></li>
    <?php if ($currentPage > 1): ?>
        <li><a href="imgit_images.php?page=1">First</a></li>
        <li><a href="imgit_images.php?page=<?php echo $currentPage-1?>">&lt;</a></li>
    <?php endif; ?>

    <?php if ($currentPage > $howMany + 1): ?>
        <li>...</li>
    <?php endif; ?>

    <?php for ($pageIndex = $currentPage - $howMany; $pageIndex <= $currentPage + $howMany; $pageIndex++): ?>
        <?php if ($pageIndex >= 1 && $pageIndex <= $numPages): ?>
            <li>
                <?php if ($pageIndex == $currentPage): ?>
                    <u>
                <?php endif; ?>

                <a href="imgit_images.php?page=<?php echo $pageIndex?>"><?php echo $pageIndex?></a>

                <?php if ($pageIndex == $currentPage): ?>
                    </u>
                <?php endif; ?>
            </li>
        <?php endif; ?>
    <?php endfor; ?>

    <?php if ($currentPage < $numPages - $howMany): ?>
        <li>...</li>
    <?php endif; ?>

    <?php if ($currentPage < $numPages): ?>
        <li><a href="imgit_images.php?page=<?php echo $currentPage+1?>">&gt;</a></li>
        <li><a href="imgit_images.php?page=-1">Last</a></li>
    <?php endif; ?>
<?php endif; ?>