upload image php mysql

I need to have an upload form whit the following detail first no duplicate image the file name hast to be send to mysql database the images got to be located in a folder at least we need 6 mb upload for each picture, we have to be able to delete the picture and update and also a javascript to display the pictures( and also we need to have the option to upload 1 or 9 pictures same time) work has to be done in 1 day