php tutorials / random image

This script will make a different image appear every time a page is reloaded.

** Make a php file called "randomimage.php"
<?php
header("Content-Type: image/gif");
$sigs = array();
$sigs[] = "imagename1.gif";
$sigs[] = "imagename2.gif";
$sigs[] = "imagename3.gif";
mt_srand((double)microtime()*1000000);
$sig = $sigs[mt_rand(0, count($sigs)-1)];
readfile($sig);
?>

** Place the following code on your page where you want the random image to display:

<?php include("randomimage.php"); ?>