I wrote thumbnailing script that did exactly what you said below, but to
eliminate the needless regeneration of existing thumbnails I just did a
check to see if the thumbnail already exists:
if(!file_exists("/path/to/thumbnail.jpg")){
//Create the thumbnail here
}
If the thumbnail already exists, the script skips over it, but if it doesn't
it creates it as needed.
-Andy
> -----Original Message-----
> From: Hugh Bothwell [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 19, 2001 1:02 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [PHP] image code
>
>
> Seems pretty straightforward, actually; I would write a script
> that takes as
> parameters the name and desired size of a graphic, resizes it, and returns
> the thumbnail ( look at ImageJPEG() ). Then I would write a script that
> iterates through the files in the directory and, for each, gets a
> thumbnail.
>
> The only problem is that this is a fair bit of work; if it's called at all
> frequently, you might be better to create a static version. But that of
> course does away with the 'self-updating' bit.
>
> A possible fix would be to write master page:
> check how long since the page has been updated; if necessary, create and
> save an updated version of the imagelist. Then forward the user to the
> saved static version. This would let you have the page update itself on a
> delayed basis, ie hourly.
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