downloading files

hi all, i've uploaded some files into my postgresql db, via a php script, and now id like to give a user the posibility to download these files via a php script. what would be the best way to do this bearing in mind that the files are 'integrated' into the db and are referenced by an oid. the table that contains the files has the original filename in one column and the oid of the file in another column besides other info on the table. any sugestion would be highly apreciated! thanx.