Description:
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You may use ZipArchive->addEmptyDir to add a folder in a parent directory without renaming it. You can then extract using ZipArchive and the folder will be recreated in the parent folders of the destination.

Test script:
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<?php
$archive = new ZipArchive();
$archive->open('a.zip',ZipArchive::CREATE);
$archive->addEmptyDir("../../down");
$archive->close();

$archive2 = new ZipArchive();
$archive2->open('a.zip');
$archive2->extractTo('.');
$archive2->close();

Expected result:
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During creation:
An error. The ZIP file should not be created.

During extraction:
It should silently succeed. The folder "down" should not be created.

Actual result:
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The file "a.zip" was created. During extraction, the folder "down" was created in the grandfather directory.