PHP has to be compiled with exif enabled (--enable-exif). See here for more info.

This got me thinking about a way to make the default template to check if exif is there, now that Folderblog allows PHP commands in templates. Here's a neat solution.

In your template files, replace this:

<div class="exif">
<b>Camera:</b> <#fbcamera#><br />
<b>Flash:</b> <#fbflash#><br />
<b>Focal Length:</b> <#fbfocallength#><br />
<b>Exposure:</b> <#fbexposure#><br />
<b>Aperture:</b> <#fbaperture#><br />
<b>White Balance:</b> <#fbwhitebalance#><br />
<b>Exposure Compensation:</b> <#fbexposurecomp#><br />
<b>Taken:</b> <#fbtaken#><br />
</div>

With this:

<?php if (extension_loaded('exif')) {?>
<div class="exif">
<strong>Camera:</strong> <#fbcamera#><br />
<strong>Flash:</strong> <#fbflash#><br />
<strong>Focal Length:</strong> <#fbfocallength#><br />
<strong>Exposure:</strong> <#fbexposure#><br />
<strong>Aperture:</strong> <#fbaperture#><br />
<strong>ISO:</strong> <#fbiso#><br />
<strong>White Balance:</strong> <#fbwhitebalance#><br />
<strong>Exposure Compensation:</strong> <#fbexposurecomp#><br />
<strong>Taken:</strong> <#fbtaken#><br />
</div>
<?php }?>

Now, if exif isn't there, the template won't show all these details, and you don't need the fb_exif.php in your 'extensions' folder. This update also includes the ISO data, now that the new fb_exif.php includes this.

Thinking about it more, you could make that 'if' statement:

if (extension_loaded('exif') && file_exists('extensions/fb_exif.php')) {?>

This would make sure that you had exif compiled in PHP and ensure you had fb_exif.php installed before displaying the EXIF details.

I’m not sure, if this is related to folderblog or a generell problem of the exif implementation in php, but at my new fb3-gallery the exif-values of my Canon EOS 300d are correct, the ones of my Canon Powershot A510 are not. There is no ISO-Value from the Powershot and the FocalLength is wrong. I know, this isn’t a big issue for the moment. But maybe someone has an idea?

And another thing. Elwing has shown an if-construct which checks if php is compiled with exif enabled and if the fb_exif.php exists. Both is working for me, but how can I test if there are some exif-data anyway in the image file? And if there are no data (e.g. for older, scanned images and such), how can I disable the whole exif-div? I’ve tried something like:

if ( <#fbcamera#> ) { ... }

but that results in an error. I’m not the php-crack, so any ideas?

Try something like this:

if ("<#fbcamera#>" != "") {
echo "<strong>Camera:</strong> <#fbcamera#><br />";
}

Don't forget all those quotes and things, and do this for each of the EXIF attributes. Only if the attribute isn't blank, it should display the data.

Again, thanks Elwing. Works great. :)

ok...I used both the fixes given by Elwing above on my folderblog and it works fine when there is no exif data (scanned images etc)...but it doesnt display anything even when exif data is present for pics from my Canon Powershot A75...can anyone think of a solution for this? I use the latest beta build of folderblog and the exif extention is installed too...

This might be useful:

http://www.jakeo.com/software/exif/index.php

My EXIF data don't apear, i have a fb htt://www.fafaelcedano.com/ as you can see my EXIF data is in blank, i have installed the jhead (on the server) and the php have all the request (htt://www.fafaelcedano.com/info.php) so please let me know what more i need to do, is very important to me show the EXIF info.

I have a Nikon D70, a Canon G1 and a Canon S50, the EXIF don't appear with any of those images types.

I'm waiting for your help,

Thanks

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My EXIF data don't appear, i have a fb htt://www.rafaelcedano.com/ as you can see my EXIF data is in blank, i have installed the jhead (on the server) and the php have all the request (htt://www.rafaelcedano.com/info.php) so please let me know what more i need to do, is very important to me show the EXIF info.

I have a Nikon D70, a Canon G1 and a Canon S50, the EXIF don't appear with any of those images types.

I'm waiting for your help,

Thanks

Have you tried whether your server supports EXIF by default?

i don't know to much of this, but can you let me know how can i try? or before i install the jhead i need to do something else more?

Thanks