Finding out whether an image is broken.

[victorp]

Hello, I'm in a little bit of a predicament, you see I have this page and it allows users to specify an image they want on a page. But here is the thing, how do I find out whether that image is broken and then replace the location with say NA.gif.

Thanks.

[biggus]

if you mean non-existent, then try the filesize() function.

HTH

[[deleted]]

You actually use the fopen command in php to open files across the net. Works really cool. I don't think it was available in php3 but it is on php4.

Anyways try it out. Here is the code and the file links that are in it actually work. I actually use this method to check photos on my site.
Happy trail

<?

//GOOD FILE LINK
$photolink="http://www.pinkbike.com/photo/pbpic16399.jpg";

//BAD FILE LINK
//$photolink="http://www.pinkbike.com/photo/filethatsnotthere.jpg";

$file = @fopen ($photolink, "r");
if (!$file) {
echo "<p>Unable to open remote file.<p>";
//some other file you want to display if file not available
$photolink="http://www.pinkbike.com/siteimages/buyselllink.jpg";
}
else
{
echo "<p>Yey! got the file<p>";
}

//Display file
print ("<img src=\"$photolink \">");

?>

[Anon]

Hi,

Would the filesize be better than fopen or fread. The thing is I have an mp3 site and they often move. Would the fopen actually open the file first before it would recognise it being active?

Thanks in advance
Mark

[[deleted]]

The filesize does not work on a file aross the web. It only works on files on the same computer that the php and server are running on. (At least from what I tried)

fopen just "sees" if the file is there....to open or "read" the file you would then do an fread.

I think fopen is the way to go here, especially since filesize only works on files on your local drives.