Use the English version as the source of truth.
You can also reference the Spanish translation my wife put up just a few hours ago: https://github.com/php/web-php/commit/69bca72650fd941110e72f5a00a441a2175520ed
Check the README.md in the root of that repo for how to run your own copy of the website (ridiculously simple).
@alessandrolai But honestly, reviving the Italian translation of the documentation would be huge if you can see your way to working on that. We had to retire it since it got out of date.
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