Image rotation

[Jez]

I'm looking at using random image rotation on one of my sites and have
found the following script very helpful:

http://www.alistapart.com/d/randomizer/rotate.txt

Everything works, but once you've randomly chosen the file on the
server wouldn't it be simpler/quicker to say ...

if ($img!=null) {
header("Locatio n: ".$img."");
}

instead of ...

if ($img!=null) {
$ext = strrchr($img,'. ');
if ($ext==".jpg") $ext = ".jpeg";
$contentType = 'Content-type: image/' . substr( $ext, 1,
(strlen($ext)) );
header ($contentType);
readfile($img);
}

I'm no expert, but this seems to work for me.

Please let me know if I've got this all wrong?

Thanks!

Jez

[Jedi121]

Re: Image rotation

"Jez" a écrit le 19/11/2003 :[color=blue]
> I'm looking at using random image rotation on one of my sites and have
> found the following script very helpful:
>
> http://www.alistapart.com/d/randomizer/rotate.txt
>
> Everything works, but once you've randomly chosen the file on the
> server wouldn't it be simpler/quicker to say ...
>
> if ($img!=null) {
> header("Locatio n: ".$img."");
> }
>
> instead of ...
>
> if ($img!=null) {
> $ext = strrchr($img,'. ');
> if ($ext==".jpg") $ext = ".jpeg";
> $contentType = 'Content-type: image/' . substr( $ext, 1,
> (strlen($ext)) );
> header ($contentType);
> readfile($img);
> }
>
> I'm no expert, but this seems to work for me.
>
> Please let me know if I've got this all wrong?[/color]

Because the first one force the Web Client to show only the image
whereas the second could be used in a HTML page in a <img> tag.
Assuming you php page is rotate.php with the second you could use in
any HTML page :
<img src="rotate.php " alt="My rotated image">
You simply can't whith your method.