使用PHP提取Zip存档

Question

what i'm trying to do is to basically extract the contents of Zip archives on my server.Here is some code:

$entry="test.zip";

    $zip = new ZipArchive;

    if ($zip->open($entry,ZIPARCHIVE::OVERWRITE) === TRUE)
    {
        $zip->extractTo('unpacked');
        $zip->close();

     }else 
     {
        echo ‘failed’;

     }

the directory "unpacked" is writeable for everyone and all the used methods of the ZipArchive Class return true. However nothing is being extracted. Does anyone happen to have an idea what could cause this behaviour? Any hint will be highly appreciated...Thanks in advance!

Answer 1

If this code is in-house, and you can safely make the assumption that you won't move this code from Linux to Windows (or vice versa), you also have the option to execute local system commands, which may help solve your problem.

<?php

echo `unzip myarchive.zip`; 
echo `tar -xzf myotherarchive.tar.gz`;

?>

When developing internal-use and/or maintenance scripts, I used to opt for straight-up system calls, as it was more in-line with the commands sysadmins were used to using.