[php-src] Issue #7801: When a zip file is left empty, a warning is triggered when script end

Issue: https://github.com/php/php-src/issues/7801 Comment Author: cmb69 Neither Apache nor a browser involved here. This issue is not SAPI specifc. The ZipArchive::OVERWRITE flag [is actually ZIP_TRUNCATE](https://github.com/php/php-src/blob/PHP-8.0/ext/zip/php_zip.h#L30-L32). This flag causes an attempt to delete the archive, but of course that fails if the file does not exist. Prior to libzip 1.6.0, this was reported as the error you're experiencing. This bug has been fixed with https://github.com/nih-at/libzip/commit/23b25a8d69a8b90c08e1923e674e2ff654af5575. I don't think it makes sense for PHP to try to work around that bug, since that can be done in userland as well (just don't open non-existing archives with ZipArchive::OVERWRITE), and the bug has been fixed upstream. And of course, you could just ignore this warning.