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Check remote server for script update

Posted on 2006-04-01
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Last Modified: 2009-12-16
I'm trying to write a function within my opensource script that will check with a remote server (my site) to see if there is a new version of the script being installed on the users server. Ideally, I would like to be able to have the user click a button to automatically transfer the updated script files to their server if there is an update available and then unzip the files on the server.

I've tried several different functions, but nothing has come close. I can't do FTP since I don't want the FTP username/password made available to everyone. I also can't seem to get the two servers to communicate to determine if there is an update in the first place. I've read info about CURL, but it seems like it can be turned off by some webhosts, so it might not work for everyone.

Any help?

Sean
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Question by:savetheorcas
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Roonaan earned 2000 total points
ID: 16353592
I have written a function which is quite complicated but is used to synchronise two servers. This however might be some overkill for just a single file.

It is located at http://www.roonaan.nl/pagina14.html and is in Dutch.

Basically the script consists of two files:

runsync.php which is located at the child/slave server, and sync.php which is located at the parent/master server.

runsync.php calls the sync.php which generates a list of md5() hashkeys for all files that need to be synchronized.
runsync.php will match those keys against the hashes of the locally stored files, and will update when necessairy.
The updating is facilitated through the both scripts.

However, although this works, this might be overkill for you.

-r-
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