gzclose

Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Close an open gz-file pointer
gzclose(resource $stream): bool
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        while ($string = gzread($archiveFile, 4096)) {

            fwrite($targetFile, $string, Platform::strlen($string));

        }

        gzclose($archiveFile);

        fclose($targetFile);

    }

}
src/Composer/Downloader/GzipDownloader.php