$zip = new ZipArchive();
$filename = "./test" . time() .".zip";

if ($zip->open($filename,ZIPARCHIVE::CREATE)!==TRUE) {      
    exit("cannot open <$filename>\n");
}

$thisdir = "$_SERVER[DOCUMENT_ROOT]/zip";
$zip->addFile($thisdir . "/trash-icon.png","/gabage.png");
echo "numfiles: " . $zip->numFiles . "\n";
echo "status:" . $zip->status . "\n";
$zip->close();

如果我添加类似的东西

$zip->addFromString("testfilePHP.txt","#1 This is a test string added as testfilePHP.txt.\n");

它创建了带有txt文件的zip ..但是对于任何类型的现有文件都没有.