Description:
------------
Some info: I use ziparchive because in my project (joomla) have a lot of small 
files and the upload time is too long (50-120 minute) 

What I did: 

 - Zipped a fresh copy of joomla
 - uploaded to the server
 - extratched by ZipArchive

My keywords and description metadatas are missing. It seems like there is a bug 
with the newline caracter, because when I see the source, there is just a mass of 
unformatted code, but on localhost OK. When I avoid this process and uploaded 
files directly everything ok. So the problem come from the ZipArchive.

(sorry for the poor description, I'm not prof, just wanted to notice :))

Test script:
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     $zip = new ZipArchive;
     $res = $zip->open('un.zip');
     if ($res === TRUE) {
         $zip->extractTo('./');
         $zip->close();
         echo 'ok';
     } else {
         echo 'failed';
     }

Actual result:
--------------
Keyword and desc meta tag-s missing. 
New lines missing from the most part of the code.