This is a simple function that can be used to create ads that rotate according to a random order. Easy to setup and customize. Just define your ads and set the number of ads displayed at once on your page. No database is required.
See a live example!

Haw to use?

To define a new ad just insert a new line like this:
$ad[] = array(“Ad title “, “Ad description “, “Display URL”, “URL”);

To display the ads include the file “ad_rotator.php” and after that call the functions show_ads().
Example:

<?php

include (”/path/to/ad_rotator.php“);

show_ads(3); // this will display 3 ads

show_ads(1); // this will display 1 ad

?>

Source code:

<?php
/*************************************************
 * Simple AD Rotator
 *
 * Version: 1.0
 * Date: 2007-08-30
 *
 * Include this php file into your site and call the
 * show_ads() function with a number of ads
 * you want to display.
 *
 * See example.php
 *
 ****************************************************/

//USAGE $ad[] = array("Title", "Description", "display url", "url");

$ad[] = array("Title 0", "Some description for Ad 0", "www.google.com", "http://www.google.com");
$ad[] = array("Title 1", "Some description for Ad 1", "www.google.com", "http://www.google.com");
$ad[] = array("Title 2", "Some description for Ad 2", "www.google.com", "http://www.google.com");
$ad[] = array("Title 3", "Some description for Ad 3", "www.google.com", "http://www.google.com");
$ad[] = array("Title 4", "Some description for Ad 4", "www.google.com", "http://www.google.com");
$ad[] = array("Title 5", "Some description for Ad 5", "www.google.com", "http://www.google.com");
$ad[] = array("Title 6", "Some description for Ad 6", "www.google.com", "http://www.google.com");
$ad[] = array("Title 7", "Some description for Ad 7", "www.google.com", "http://www.google.com");
$ad[] = array("Title 8", "Some description for Ad 8", "www.google.com", "http://www.google.com");
$ad[] = array("Title 9", "Some description for Ad 9", "www.google.com", "http://www.google.com");

// Function to display random ads from the list
function show_ads($number_of_ads=1){
    // Loading the ads list
    global $ad;

    // maximul number of ads = number of ads
    if($number_of_ads > count($ad)){
        $number_of_ads = count($ad);
    }

    // Initialize the random generator
    list($usec, $sec) = explode(' ', microtime());
    srand((float) $sec + ((float) $usec * 100000));

    // select random ads
    $rand_keys = array_rand($ad, $number_of_ads);

    // creade ads
    $show_ads = "<table><tr>";
    for($i=0; $i<$number_of_ads; $i++){
        $e = $ad[$rand_keys[$i]];
        $show_ads .= "
<td onClick=\"document.location='{$e[3]}'\" title='{$e[0]}' width='180' style='cursor:pointer'>
<a href='{$e[3]}' style='font:13px Arial; font-weight:bold; color: #0000ff'>{$e[0]}</a><br>
<span style='font:12px Arial; color: #333333'>{$e[1]}</span><br>
<a href='{$e[3]}' style='font:10px Arial; color: #009900'><i>{$e[2]}</i></a>
</td>
";
    }
    $show_ads .= "</tr></table>";

    echo $show_ads;
}

?>

Tags: Ad Rotator

This entry was posted on Monday, October 13th, 2008 at 08:14 and is filed under PHP and MySQL. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.