[FX.php List] Another image display question

[Gjermund Gusland Thorsen]

I suggest you use this function to check if the file exists:

http://www.php.net/manual/en/function.file-exists.php

if( ! file_exists( $query['record_ID'][0] . '.jpg' ) ) {
    // don't display the image tag
} else {
    // display the image tag
}

ggt667

On 9/21/07, Chris Bisgard <chris at hotanvil.com> wrote:
>
>
> Hi all,
>
> I have a FileMaker solution in which my images are stored externally from
> the database at a web-accessible location, and I am using a web
> viewer window to load them in FM layouts (i.e: no container field). We use a
> strict image naming convention so that the filenames match a unique ID
> number for each record in the database. There is not always an image for
> every record, and because it's not desirable to see the default 404 page in
> the web viewer when there isn't one, I have set up a custom 404 page for my
> image that just says "Image Not Available" for my FM clients. This is all
> working fine.
>
> However, this database is also searchable on the web, which I have set
> up using FX.php. I can query for the record ID and use it to generate the
> URL to the correct image file, like this:
>
> print "<img src=\"http://mysite.com/images/" . $query['record_ID'][0] .
> ".jpg\">";
>
> The problem is that I don't want web users to see a "broken image" icon when
> there's no image at that location. I would rather just not have the IMG tag
> appear at all in that case. In the past, we used embedded images in
> container fields... not an ideal solution, but it did make it easy to just
> check for image data like this:
>
> if ( $query['imageContainer'][0] == '' ) {
>     // don't display the image tag
> } else {
>     // display the image tag
> }
>
> But with this new improved setup, I don't have a container field to check.
> How can I check to see if there's an image file there at the URL defined by
> the record ID? Is there a PHP function that can check to see if an HTTP
> request for the image comes back 404? Or is there a way to have FileMaker
> test for the presence of an external file and return an error code I could
> trap for?
>
> Thanks for any help or advice, as always.
>
> Chris Bisgard
> Information Technology Specialist
> Regional Arts & Culture Council
> 108 NW 9th Avenue, Suite 300
> Portland, Oregon 97209-3318
>
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