Version: 1.0
Type: Full Script
Category: Graphics
License: Other
Description: This code radomly selects and image from a directory and with the aid of META refresh rotates images on a page in a slideshow fashion. The code will function fine without the META refresh enabling a different image to be viewed upon page refresh. The script generates a valid IMG tag including graphic dimensions. Will accept either GIF or JPEG formats. This code should be compliant for both PHP 3.x and PHP 4.x
<script language="php"> // ============================================================= // Script: Image Rotation Script // With Adjustable Timing and Unlimited Images // Utilizes META REFRESH // Function: Displays random images continuously in a slideshow // presentation format // PHP ver: 3.x, 4.x // Author: Jarrod Major // Email: [email protected] // Copyright: (C)2001 Nucleus Information Service Inc. // Licence: Free, drop me a line letting me know where you // used the script. Please keep this header attached. // ============================================================= // Disclaimer: // Use of this code is at the programmer's own risk. Damage // to any property as a result of the script's use is the sole // responsibility of the programmer, no blame shall be laid on // the author of this script or his employer. // ============================================================= function rotate_images() { // open directory, images must be in a separate directory $dir_pointer = dir( "directory_name" ); // make an array of filenames while( $entryName = $dir_pointer->read() ) { // don't include parent/current directory listing /. /.. if( !ereg( "^.", $entryName ) ) $file_array[] = $entryName; // could be done this way to simplify some code below # $file_array[] = "directory_name/$entryName"; } // close directory $dir_pointer->close(); $count_array = count( $file_array ) - 1; // intialize random seed srand( time() ); // get a random index number to pull from array $random_no = rand( 0, $count_array ); // make a file pointer $file_name = "directory_name/$file_array[$random_no]"; // or if directory added to array element #$file_name = $file_array[$random_no]; // get image dimensions $image_size = getimagesize( $file_name ); // create dynamic image tag $out = sprintf( '<img src="%s" %s alt="image." />%s', $file_name, $image_size[3], "n" ); return $out; } </script> <html> <head> <!-- to adjust timing change 'content' value below --> <meta http-equiv="Refresh" content="3" /> <title>Test Image shuffler</title> </head> <body> <?php print rotate_images(); ?> </body> </html>
