PHP Image rotation

[ShortCircuit]

My client wants some images on their site that rotate, to keep the site looking fresh.
I was going to use javascript but I dont like it and want to use PHP but unsure where to really start with a script like this.

Is it simple to build?

[John]

here is a script that i made as a sig rotator...it does exactly what you want done.

Notes:
1) Make sure you change the image directory in the script.
2) Make sure you use the php script as the image... <img src="banner_rotator.php"></img>
3) i havnt used it in a while, so im not sure if this is even the right script, but give it a try and see if it works.

PHP Code:

<?php

$folder = './';

$extList = array();
$extList['gif'] = 'image/gif';
$extList['jpg'] = 'image/jpeg';
$extList['jpeg'] = 'image/jpeg';
$extList['png'] = 'image/png';

$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);
   }
}

?>

[ShortCircuit]

Thanks, I take it this script will pull all images from a directory rather than me having to go in and manually type in each file name?

[John]

yes

[Lop]

Nice script. I may use this once I develop one for one of my websites.