<?php/* By Matt Mullenweg > http://photomatt.net Inspired by Dan Benjamin > http://hiveware.com/imagerotator.php Latest version always at: http://photomatt.net/scripts/randomimage*/// Make this the relative path to the images, like "../img" or "random/images/".// If the images are in the same directory, leave it blank.$folder = '';// Space seperated list of extensions, you probably won't have to change this.$exts = 'png';$files = array(); $i = -1; // Initialize some variablesif ('' == $folder) $folder = './';$handle = opendir($folder);$exts = explode(' ', $exts);while (false !== ($file = readdir($handle))) { foreach($exts as $ext) { // for each extension check the extension if (preg_match('/\.'.$ext.'$/i', $file, $test)) { // faster than ereg, case insensitive $files[] = $file; // it's good ++$i; } } }closedir($handle); // We're not using it anymoremt_srand((double)microtime()*1000000); // seed for PHP < 4.2$rand = mt_rand(0, $i); // $i was incremented as we went along//ADDED: no caching!/*header("Expires: Mon, 26 Jul 1990 05:00:00 GMT");header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");header("Cache-Control: no-store, no-cache, must-revalidate");header("Cache-Control: post-check=0, pre-check=0", false);header("Pragma: no-cache");*///end added code//header('Location: '.$folder.$files[$rand]); // Voila!header('Content-type: image/png');imagepng(imagecreatefrompng($folder.$files[$rand]));?>