Display random image on Webpage

[branx86]

Dan P. Benjamin, Automatic, Ltd.
Displays a different image every page visit with caption at the bottom

HTML-  <img src="/rotate.php" alt="Satellite Images" width="400" height="500" id="hp" />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

<font size="5">SDR Satellite Images</font>


Then you need the php script called rotate.php
Just copy all the code below and make a file called rotate.php

Code Select Expand

<?php/*	AUTOMATIC IMAGE ROTATOR	Version 2.2 - December 4, 2003	Copyright (c) 2002-2003 Dan P. Benjamin, Automatic, Ltd.	All Rights Reserved.	http://www.hiveware.com/imagerotator.php		http://www.automaticlabs.com/			DISCLAIMER	Automatic, Ltd. makes no representations or warranties about	the suitability of the software, either express or	implied, including but not limited to the implied	warranties of merchantability, fitness for a particular	purpose, or non-infringement. Dan P. Benjamin and Automatic, Ltd.	shall not be liable for any damages suffered by licensee	as a result of using, modifying or distributing this	software or its derivatives.			ABOUT	This PHP script will randomly select an image file from a	folder of images on your webserver.  You can then link to it	as you would any standard image file and you'll see a random	image each time you reload.		When you want to add or remove images from the rotation-pool,	just add or remove them from the image rotation folder.	VERSION CHANGES	Version 1.0		- Release version		Version 1.5		- Tweaked a few boring bugs		Version 2.0		- Complete rewrite from the ground-up		- Made it clearer where to make modifications		- Made it easier to specify/change the rotation-folder		- Made it easier to specify/change supported image types		- Wrote better instructions and info (you're them reading now)		- Significant speed improvements		- More error checking		- Cleaner code (albeit more PHP-specific)		- Better/faster random number generation and file-type parsing		- Added a feature where the image to display can be specified		- Added a cool feature where, if an error occurs (such as no		  images being found in the specified folder) *and* you're		  lucky enough to have the GD libraries compiled into PHP on		  your webserver, we generate a replacement "error image" on		  the fly.		    Version 2.1        - Updated a potential security flaw when value-matching          filenames    Version 2.2        - Updated a few more potential security issues        - Optimized the code a bit.        - Expanded the doc for adding new mime/image types.        Thanks to faithful ALA reader Justin Greer for        lots of good tips and solid code contribution!	INSTRUCTIONS	1. Modify the $folder setting in the configuration section below.	2. Add image types if needed (most users can ignore that part).	3. Upload this file (rotate.php) to your webserver.  I recommend	   uploading it to the same folder as your images.	4. Link to the file as you would any normal image file, like this:			<img src="http://example.com/rotate.php">	5. You can also specify the image to display like this:			<img src="http://example.com/rotate.php?img=gorilla.jpg">				This would specify that an image named "gorilla.jpg" located		in the image-rotation folder should be displayed.		That's it, you're done.*//* ------------------------- CONFIGURATION -----------------------	Set $folder to the full path to the location of your images.	For example: $folder = '/user/me/example.com/images/';	If the rotate.php file will be in the same folder as your	images then you should leave it set to $folder = '.';*/	$folder = '.';/*		Most users can safely ignore this part.  If you're a programmer,	keep reading, if not, you're done.  Go get some coffee.    If you'd like to enable additional image types other than	gif, jpg, and png, add a duplicate line to the section below	for the new image type.		Add the new file-type, single-quoted, inside brackets.		Add the mime-type to be sent to the browser, also single-quoted,	after the equal sign.		For example:		PDF Files:		$extList['pdf'] = 'application/pdf';	    CSS Files:        $extList['css'] = 'text/css';    You can even serve up random HTML files:	    $extList['html'] = 'text/html';	    $extList['htm'] = 'text/html';    Just be sure your mime-type definition is correct!*/    $extList = array();	$extList['gif'] = 'image/gif';	$extList['jpg'] = 'image/jpeg';	$extList['jpeg'] = 'image/jpeg';	$extList['png'] = 'image/png';	// You don't need to edit anything after this point.// --------------------- END CONFIGURATION -----------------------$img = null;if (substr($folder,-1) != '/') {	$folder = $folder.'/';}if (isset($_GET['img'])) {	$imageInfo = pathinfo($_GET['img']);	if (	    isset( $extList[ strtolower( $imageInfo['extension'] ) ] ) &&        file_exists( $folder.$imageInfo['basename'] )    ) {		$img = $folder.$imageInfo['basename'];	}} else {	$fileList = array();	$handle = opendir($folder);	while ( false !== ( $file = readdir($handle) ) ) {		$file_info = pathinfo($file);		if (		    isset( $extList[ strtolower( $file_info['extension'] ) ] )		) {			$fileList[] = $file;		}	}	closedir($handle);	if (count($fileList) > 0) {		$imageNumber = time() % count($fileList);		$img = $folder.$fileList[$imageNumber];	}}if ($img!=null) {	$imageInfo = pathinfo($img);	$contentType = 'Content-type: '.$extList[ $imageInfo['extension'] ];	header ($contentType);	readfile($img);} else {	if ( function_exists('imagecreate') ) {		header ("Content-type: image/png");		$im = @imagecreate (100, 100)		    or die ("Cannot initialize new GD image stream");		$background_color = imagecolorallocate ($im, 255, 255, 255);		$text_color = imagecolorallocate ($im, 0,0,0);		imagestring ($im, 2, 5, 5,  "IMAGE ERROR", $text_color);		imagepng ($im);		imagedestroy($im);	}}?>