This is a research code.

Multiple writes to the same xml file with compress.zlib:// stream would fail to decode in browsers if served via readfile()

• Issue: samdark/sitemap#44
• Question on StackOverflow: https://stackoverflow.com/questions/45598939/multiple-writes-to-the-same-compressed-xml-file-would-break-it-in-browsers

Chrome, v60:

Firefox, v54:

How to reproduce

Sample files could be generated in generate-files.php and served via serve.php.

How to check this issue?

composer start-server

# in the other terminal
composer check

Try how different files served:

❌ http://localhost:8000/serve.php?file=multi
✔️ http://localhost:8000/serve.php?file=remulti
✔️ http://localhost:8000/serve.php?file=one