php zip 提取使文件为空

Question

Ok so this is making me crazy... I abstracted the code because it comes from a big project. But in my project I ended up commenting everything and only have this left which is still causing problems and I have no idea why.

$f = fopen('tmp/'.$name.'.zip', 'wb');
fwrite($f, $myzip);
fclose($f); //I can open this file manually and everything is fine
$zip = new ZipArchive;
$res = $zip->open('tmp/'.$name.'.zip'); //$res is "1"
$zip->extractTo("final/" . $unique);
$zip->close();

As you can see I write a zip file in /tmp , at this point, I can open the file manually and it contains all files with the correct size. But after I extract it to /final , for some reason some files are empty... Any idea what could cause this?

Answer 1

You can do this way by throwing Exception at zip archive open time,

function DecompressFile()
{
    $zip = new ZipArchive;
    if ($zip->open('tmp/'.$name.'.zip') === TRUE) {
        $zip->extractTo("final/" . $hwidDir);
        $zip->close();
        return 'completed';
    }
    else {
        throw new Exception ("Decompress operation from ZIP file failed.");
    }
}