Exif photo isospeed
From Photostand Wiki
exif_photo_isospeed()
The exif_photo_isospeed function will return the photo iso speed rating value. It can be used in index.php (template) or popup.php, at any time.
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Parameters
This function has no parameters.
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Examples
In a normal paragraph
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>My photoblog</title>
</head>
<body>
<p>The ISO speed of this photo is: <?php echo exif_photo_isospeed(); ?>.</p>
</body>
</html>
Here, the ISO speed will simply appear as normal text directly in the page.

