in-memory ZipArchive

Description

Currently ZipArchive relies on the filesystem, for both opening and extracting files.

Would it be possible to have it work with files (or data) in memory? Or is that a limitation of the underlying zip library?

Below is an example of ZipArchive not being able to open files from a virtual file system (probably because it's a stream).

$vfs = \org\bovigo\vfs\vfsStream::setup();

copy('foo.zip', $vfs->url() . '/foo.zip');

var_dump(file_get_contents($vfs->url() . '/foo.zip')); // file contents appears

$zip = new ZipArchive();
$zip->open($vfs->url() . '/foo.zip');
$zip->extractTo(__DIR__); // Uncaught ValueError: Invalid or uninitialized Zip object
$zip->close();

Inizia con il comportamento di ZipArchive open() e extractTo() mostrato nell'esempio vfsStream, quindi analizza il supporto della zip library sottostante per streams o in-memory data. Il lavoro è completato quando ZipArchive può aprire ed estrarre un archivio fornito da un filesystem virtuale o dalla memoria senza dipendere da normali percorsi del filesystem.