Beta Features/PHP7/hi

The Wikimedia Foundation has been employing to run MediaWiki in production since 2014. Since then, a few things happened that made it compelling for us to move back to the "official" interpreter:


 * PHP 7.x has brought huge performance improvements, so that its performance is nowadays comparable to, if not better than, HHVM for our needs.
 * HHVM has dropped support for pure PHP in favour of Hack, an "evolution" of PHP which doesn't have widespread support.

The Wikimedia Foundation is moving all Wikimedia wikis to use PHP7 in early 2019. PHP7 जनवरी 2019 से उपलब्ध होगा।

You can verify that it is enabled for you by visiting Special:Version on your wiki, and checking that it says "php" instead of "HHVM" in the "Installed software" table.

I am a non-technical user. What does this mean?
Hopefully nothing. This is about changing the software used to run the wiki's code. Ideally, you should notice no real difference.

यह कब होगा?

 * काम 2017 में शुरू हुआ, 2018 से अधिक समय तक चला, और 2019 की पहली छमाही में उत्पादन-पूर्ण होना चाहिए।

* अगर मुझे कोई मुद्दा मिल जाए तो मुझे क्या करना चाहिए?

 * Report it on Phabricator, in the PHP 7.2 support project.

* संपादन क्यों टैग किए जा रहे हैं?
You can ignore the PHP7 tags.
 * This will help us identify performance, functional and stability concerns specific to PHP in comparison to HHVM.