Re: Re: How do I read Exif data without a file?

On Saturday 25 February 2006 23:42, chris smith wrote: >> > I have some images in a database -- I mean, the actual data. There are >> > no files. >> > >> > I want to read Exif data for these images, but the read_exif_data() >> > function wants a file. I suppose I could write the images to temp >> > files, but that's a bit wasteful. And where would I write them? Is >> > there a folder I can count on being allowed to write to? >> > >> Answering myself: I solved this with tempnam(). I'm not completely sure >> about the portability, and of course it's a waste to write a file at all. >> And it could pose a security problem as well. Ho hum. > > You only need to do it once - then store it back in the database. That > info isn't going to change. > > When you store the image in the database you can get the info and store it > then. No, I can't. I've got some images, with exif information in the DB. I'm now generating thumbnails for them, and also storing those in the DB. No files at all, and therefore I can't read exif data for the thumbnails. As I said I've solved the problem by writing a temporary file and reading exif from that. Not pretty or efficient, but it works. //Niels