<?php
declare(strict_types=1);

$file = tempnam(sys_get_temp_dir(), "bhylu-zip-");
if ($file === false) throw new RuntimeException("Cannot allocate archive path");
unlink($file);
try {
    $zip = new ZipArchive();
    if ($zip->open($file, ZipArchive::CREATE) !== true) throw new RuntimeException("Cannot create archive");
    $zip->addFromString("notes/readme.txt", "Return tools clean"); $zip->close();
    if ($zip->open($file) !== true) throw new RuntimeException("Cannot reopen archive");
    try { echo $zip->getFromName("notes/readme.txt"), "\n"; } finally { $zip->close(); }
} finally { if (is_file($file)) unlink($file); }