> Meta is the sole reason PHP is still alive.
This could not be more wrong. Meta is still using PHP AFAIK but I'm not sure it's modern. They created the Hack programming language ~10 years ago but it doesn't look like it's been updated in several years. Most of the improvements they touted were included in PHP 7 years ago.
I never said they were still using it (they are in some cases)
But when the backend world was either Java or ASP, FB chose PHP and helped us other small companies out.
They eventually went Hack, the rest went Node for the most part.
But during those PHP years they gave us HHVM and many PHP improvements to get us through.
HHVM was not a contribution to PHP. It resulted in PHP 7 being sped up and releasing with a bunch of long awaited features. But afaik , very little of HHVM made it back to PHP core.