[PHP] Checking if files are there?

[Sam]

Hi all, 

I was wondering if you could use PHP to test if a picture is there?
I.E. checking if you could open the picture or not, and displaying a message
either way.

I have tried

$file = fopen ("../images/maps/$filename.jpg", "r");
if (!$file) {
        print "This is no map for this trip.";
        exit;
}
else
{
        print "<img src=/images/maps/$filename.jpg>"; 
}

This works but also brings up a warning message as well, which is not
wanted.
Is there a way to get rid of the warning message?

Thanks in advance
Sam Rose

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