How to zip a whole folder using PHP

Question

I have found here at stackoveflow some codes on how to ZIP a specific file, but how about a specific folder?

Folder/
  index.html
  picture.jpg
  important.tx         


        

Answer 1

Why not Try EFS PhP-ZiP MultiVolume Script ... I zipped and transferred hundreds of gigs and millions of files ... ssh is needed to effectively create archives.

But i belive that resulting files can be used with exec directly from php:

exec('zip -r backup-2013-03-30_0 . -i@backup-2013-03-30_0.txt');

I do not know if it works. I have not tried ...

"the secret" is that the execution time for archiving should not exceed the time allowed for execution of PHP code.