Could not open password protected zip archive - php

Question

I was creating a zip archive with php 7.4 (lib-zip version 1.6.1) without any problems.
Now I try to protect these zip archive with a password. Not just for encrypting with php, but in general. I found this tutorial. It does what it should, but I could not read the files of the zip archive any more. If I doubleclick on the archive, the password prompt opens up, but it does not work with the password from the source code. I also copy and pasted it to prevent any keyboard struggle.
<?php
$zip = new ZipArchive();
$filePath = sprintf('%s/test/', __DIR__);
$fileName = 'test.zip';
$absoluteFilePath = $filePath . $fileName;
$excludeFolderNames = [
'.',
'..',
'.DS_Store',
$fileName,
];
$zipFlag = ZipArchive::CREATE;
if (file_exists($absoluteFilePath)) {
$zipFlag = ZipArchive::OVERWRITE;
}
$createFile = $zip->open($absoluteFilePath, $zipFlag);
if (true !== $createFile) {
throw new RuntimeException(sprintf('could not open file in "%s" caused by %s', $fileName, $createFile));
}
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($filePath));
$password = 'top-secret';
if (!$zip->setPassword($password)) {
throw new RuntimeException('Set password failed');
}
/** #var SplFileInfo $value */
foreach ($iterator as $key => $value) {
if (in_array($value->getFilename(), $excludeFolderNames)) {
continue;
}
$cleanFilePath = realpath($key);
if (!$cleanFilePath) {
throw new RuntimeException(sprintf('could not create real path from filepath: %s', $key));
}
$zipName = str_replace($filePath, '', $cleanFilePath);
if (!$zip->addFile($cleanFilePath, $zipName)) {
throw new RuntimeException(sprintf('Add file failed: %s', $cleanFilePath));
}
if (!$zip->setEncryptionName($zipName, ZipArchive::EM_AES_256)) {
throw new RuntimeException(sprintf('Set encryption failed: %s', $zipName));
}
}
$zip->close();
Does someone has the same problem or am I the problem?
UPDATE I:
I tought it solves my problem to save the zip-file outside the folder I want to zip. So I changed the following line:
$absoluteFilePath = sprintf('%s/%s', __DIR__, $fileName);
After a while the error occured again.
One possible reason I discovered, were .DS_Store files. In my example I exclude them. But the error occured again.
UPDATE II:
One further problem is, that there is no password prompt, if all files are empty.
UPDATE III:
Same code works with files without line break, but the error occurs, if the file has multiple lines.

Answer 1

I found help at the php-bugtracker. It turns out that I can extract all the files with an zip-extension like the comments tryed to tell me before. Now I wait for the new libzip version 1.7.0, where the default zip encryption is available. After this I hope I can extract my files without any extension.