I think younger software developers don't appreciate how big of a deal #PHP was back in the day — and how important it was for the early mainstream Web.
The early mainstream Web — late 1990s and 2000s — was largely built on PHP — well —
PHP + MySQL + Apache + Linux
What eventually got called "L.A.M.P.".
("L.A.M.P." = Linux + Apache + MySQL + PHP.)
A lot of the explosion of creativity & culture & invention that happened during the early mainstream Web owes thanks to PHP.