Compression: Online zip modifier
M H Rasel (contact me)
This class can be used to modify the files in a ZIP archive without creating temporary files in the server.
It is an enhanced version of another class previously written by Joshua Townsend.
This version can open a ZIP archive, extract its contents, add new files, pack the ZIP archive again and serve it for download without creating any files in memory.
Click here for detailed information about this class on phpclasses.org
Php Handleiding