Pagination Or Something Else?

Randy · 09-08-2007, 05:43 AM

So I am making a portfolio, and it will have a page with photography and a page with web design/graphic work, I only want to show 4 images (previews) a page and it will have a link saying like Full View and it will show you a full view of the image using lightbox 2.0. I was wondering should i use pagination or something, and if i should use pagination if somebody could help me make a script for it, i read the tutorial here but it didnt make any sense to me..

I have a page with the information up already at
http://www.randycram.com/photography.php

can anybody tell me how i would go about doing this? i want a link like
"Previous - 1 2 3 4 5 etc.. - Next" at the bottom and each page will display 4 images.

Note: etc being numbers past 5.

bluesaga · 09-08-2007, 10:27 AM

Heres a function a wrote a while ago, isnt the best coding but it produces some very nice results, including google like pagination!

PHP Code:


			
    function pagination($current_page, $num_of_pages)
    {
            
            if($current_page > $num_of_pages)
                $current_page = $num_of_pages;
                
            if($current_page == "")
                $current_page = 1;
            
            if($current_page != 1)
                $prev = $current_page - 1;
                
            if($current_page != $num_of_pages)
                $next = $current_page + 1;
            
            $min = $current_page-5;
            $max = $current_page+5;
            if($min < 1)
                $min = 1;
            if($current_page < 6 && $num_of_pages < 10)
                $max = $num_of_pages;
            elseif($current_page < 6 && $current_page > 10)
                $max = 10;
                
            if($max > $num_of_pages)
                $max = $num_of_pages;
                
            if($prev)
                $pagination[] = "P-".$prev;
            
            for($i=$min; $i <= $max; $i++)
            {
                $pagination[] = $i;
            }
            
            if($next)
                $pagination[] = "N-".$next;
            return $pagination;
    }

Usage:
I wrote the class to be standalone, thus it is a little different than if it was written within a script:

PHP Code:


			
$iNumPerPage = 25;
$iNumResults  = 200; //number of results
$iNumPages    = ceil($iNumResults/$iNumPerPage);

if($_REQUEST['iPage'] < 1)
   $iPage = 1; //Page number
$aPages = pagination($iPage, $iNumPages);

print_r($aPages);
/* Outputs
Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
    [5] => 6
    [6] => 7
    [7] => 8
    [8] => N-2
)
*/

As you can see it produces some weird results....

If you want to parse the array, ive used code like:

PHP Code:


			
        foreach($aPages as $page)
        {
                if (stripos($page, "p-") !== false)
                {
                        $p = substr($page, -1);
                        if($p != 1)
                            print "<a href='/".$p."/".urlencode($search)."'>Prev</a>";
                        else
                           print "<a href='/'>Prev</a>";
                }
                elseif(stripos($page, "n-") !== false)
                {
                        $p = substr($page, -1);
                        if($p != 1)
                            print "<a href='/".$p."/".urlencode($search)."'>Next</a>";
                        else
                            print "<a href='/'>Next</a>";
                }
                else
                {
                    if($page != 1)
                        print "<a href='/".$page."/".urlencode($search)."'>".$page."</a>";
                  else
                        print "<a href='/".urlencode($search)."'>".$page."</a>";                 
                }
        }

Anywho, like i said before this isnt my best code, but it does work :)

Shaun · 09-14-2007, 01:44 PM

I know this isnt really pagination, but for one script i made the following:

PHP Code:


			
        <h2>Mailing List Users</h2>

        <table>

            <tr class="head">

                <td><b>Name</b></td>

                <td><b>Email</b></td>

                <td><b>Postcode</b></td>

                <td><b>Genres</b></td>

                <td></td>

            </tr>

        <?php

            $page = $_GET['page'];

            if (isset($page))

            {

                if ( $page == '1' )

                {

                    $limit = "20, 20";

                } else

                {

                    $start = $page*20;

                    $limit = $start . ", 20";

                }

            } else

            {

                $limit = "0, 20";

            }

            $data  = Sql::query("SELECT * from mailing_list order by newsletterID ASC limit ". $limit);

            while($newsletter = mysql_fetch_array($data))

            {

                echo "<tr>\n";

                echo "    <td>" .$newsletter['firstname']. " " .$newsletter['lastname']. "</td>\n";

                echo "    <td>" .$newsletter['email']. "</td>\n";

                echo "    <td>" .$newsletter['postcode']. "</td>\n";

                echo "    <td>" .$newsletter['genres']. "</td>\n";

                echo "    <td><a href='mailing_list.php?edit=" .$newsletter['newsletterID']. "'>(edit)</a> <a href='links.php?delete=" .$newsletter['newsletterID']. "'>(delete)</a></td>\n";

                echo "</tr>\n";

                $last++;

            }

        ?>

        </table>

        <?php

        

        $result   = Sql::query("SELECT * from mailing_list order by newsletterID");

        $num_rows = mysql_num_rows($result);

        if ( $num_rows > 20 )

        {    

            if (!$page == "0" )

            {

                $prev = $page-1;

                if ($page == "1" )

                {

                    echo "<a href='mailing_list.php'>< Prev</a> ";

                } else

                {

                    echo "<a href='mailing_list.php?page=".$prev."'>< Prev</a> ";

                }

            }

            $calc = $page*20+20;

            if ( $num_rows > $calc )

            {

                $next = $page+1;

                echo "<a href='mailing_list.php?page=".$next."'>Next ></a>";

            }

        }

        $results = explode(",", $limit);

        if ( $results[0] == "0" )

        {

            $results[0] = 1;

        }

        if ( !$page == "0" )

        {

            if ( $page == "1" )

            {

                $last = $last+20;

            } else

            {

                $last = $page*20+$results[1];

            }

        }

        echo "<p>Showing Results: " . $results[0] . " to " . $last ." of " . $num_rows . "</p>";

    }

        ?>

To me it seems like a lot of code for something thats only changing the page to show the next 20 results.

Any hints of doing this better?

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