Simple Banner Rotation Script

[John Scott]

On one site I used to own, we had the banner set to rotate on every page view. No tracking, no complex script.

Anybody know of the code used to do this?

[John Scott]

http://web-design.net/perlscripts/clicktrade.cgi.txt

That?

[John Scott]

Actually that was perl and I need PHP. So I found a PHP version.

PHP Code:

<?php

/* Banner Simple, Version 1.0
 * by Dan Kaplan <dan@abledesign.com>
 * Last Modified: January 10, 2003
 * --------------------------------------------------------------------
 *
 * USE THIS LIBRARY AT YOUR OWN RISK; no warranties are expressed or
 * implied. You may modify the file however you see fit, so long as
 * you retain this header information and any credits to other sources
 * throughout the file.  If you make any modifications or improvements,
 * please send them via email to Dan Kaplan <dan@abledesign.com>.
 * --------------------------------------------------------------------
*/

$base_dir = '/path/to/www/';
$img_url = 'http://www.mysite.com/images/ads';

// add any banner sizes (width x height) that you will use:
// IAB Standards & Guidelines:  http://www.iab.net/standards/adunits.asp
$banner_sizes = array ("468x60", "100x60", "100x38", "300x250", "250x250", "240x400", "336x280", "180x150", "468x60", "234x60", "88x31", "120x90", "120x60", "120x240", "125x125", "160x600", "120x600");

$srand_called = FALSE;
$last_file = '';
$array = '';

function get_banner($size='') {
    global $base_dir, $img_url, $banner_sizes, $srand_called, $last_file, $array;

    if (empty($size) || !in_array($size, $banner_sizes)) {
        $size = "468x60";
    }

    $size_split = explode("x", $size);
    $width = $size_split[0];
    $height = $size_split[1];

    if (empty($last_file) || ($size != $last_file) || !is_array($array)) {
        // if calling muliple banners on one page, no need to read in the same file repeatedly.  so,
        // if the last banner file read in is the next one called, pull the $array array from memory.
        
        $file = $base_dir."/mybanner_".$size.".txt";
        if (!file_exists($file)) {
            // could not load the banner file, so create a default blank image and exit
            $banner = "<img src=\"\" width=\"$width\" height=\"$height\" border=\"0\" alt=\"broken image\">";
            return $banner;
        }
        $array = file($file);    // read $file into an array
        $last_file = $size;        // save the last read-in file into memory
    }
    
    if (!$srand_called) {
        // slightly less random without this; srand() should only be called once for multiple banners
        mt_srand ((double) microtime() * 1000000);
        $srand_called = TRUE;
    }

    $rand = mt_rand(1, count($array)-1);    // start at 1 to ignore comment line
    $line = chop($array[$rand]);

    # URL | target="_blank" (1/0) | off-site image (1/0) | image | Alt text
    $banner_split = explode("|", $line);
    $URL = $banner_split[0];
    $blank = $banner_split[1];
    $off_site = $banner_split[2];
    $image = $banner_split[3];
    $alt = $banner_split[4];

    if ($blank == 1) {
        $target = "target=\"_blank\"";
    } else {
        $target = "";
    }

    if ($off_site == 1) {
        $image = $image;
    } else {
        $image = "$img_url/$image";
    }

    $banner = "<a href=\"$URL\" $target><img src=\"$image\" width=\"$width\" height=\"$height\" border=\"0\" alt=\"$alt\"></a>";
    return $banner;
}

?>

http://abledesign.com/programs/banner.php

What do you think?

[Kalina]

I have a simple one on a client's site and it's just a javascript you insert into the same page the images are on that you want rotated. Do you want PHP for a reason?

[John Scott]

Not all people have JS enabled - would piss off advertisers.

[Kalina]

I figured that's why. The one you posted above looks fine.

[John Scott]

Can you try it out somehwere?

Like, um, on vB?

Sweetie

[Kalina]

What is VB? Yeah I can after you tell me, lol.

[John Scott]

Any vBulletin board. Like one of yours or one of mine

[Kalina]

hmm ok. One of yours preferably.

[John Scott]

K

You need Admin permissions or ftp too?

[John Scott]

http://www.paris-hilton-forums.com/forums/

Let's try it there. Register and I'll make you admin.

http://www.paris-hilton-forums.com/f...thread.php?t=5

See where the sevenseek banner is? I want that to rotate with this:

[Kalina]

Ok, gee, the skank forum, my day has just been made complete.

[John Scott]

LOL

[Kalina]

Hurry, make me an admin, my eyes are burning!! lol.

[John Scott]

You are admin, girl.