Command to zip a directory using a specific directory as the root

I don't think zip has a flag to do that. I think the only way is something like:

cd /var/www/oraviewer/rgn_download/download/ && \   zip -r fcst_20100318_0319.zip fcst_20100318_0319

(The backslash is just for clarity, you can remove it and put everything on one line.)

Since PHP is executing the command in a subshell, it won't change your current directory.

linux command-line zip command

I have also get it worked by using this command

exec('cd '.$_SERVER['DOCUMENT_ROOT'].' && zip -r com.zip "./"');

linux command-line zip command

cd /home/public_html/site/upload/ && zip -r sub_upload.zip sub_upload/

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