Kind of image that is in the server

For upload is $_FILES["photo"]["type"]; and for the ones that were already

[romzinho2k7]

Good morning...

How Can I know the kind of the image what is in the server? When we do upload is alone to put $_FILES["photo"]["type"];

And to do it know the ones that are it already in the server? Do remind what all are the images renames for .JPG?

Sorry my english.
I am learning...

Thanks

[eelixduppy]

Try mime_content_type [us3.php.net]

[romzinho2k7]

Thank you! :)

[whoisgregg]

Using getimagesize [php.net] provides both the file type for images and other handy info like height and width. Plus, it returns false for non-images which is also useful if all you need to handle is images.