Parsing EXIF's "ExposureTime" using PHP

Posted by MarkL on Stack Overflow See other posts from Stack Overflow or by MarkL
Published on 2010-06-16T00:24:27Z Indexed on 2010/06/16 0:42 UTC
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exif

Re,

One photo with exposure being 1/640 has the EXIF field of "ExposureTime" eq. "15625/10000000". I am not sure why some photos display this value in a readable format (e.g., "1/100"), but I need to convert this "15625" back to "1/640". How? :)

Thanks.

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