[citrin_ru]

IMHO most of hate is just because it is fashionable to hate some languages including PHP and Perl. But there is some criticism which looks valid to me e. g. [1]

Regarding embedded into HTML PHP code - it's a easy for beginners but in a large application it leads to hard to maintain mix of app logic and presentation - AFAIK this feature is rarely used outside toy project for many years.

[1] https://eev.ee/blog/2012/04/09/php-a-fractal-of-bad-design/ (very old and some issues may be were addressed but it's hard to fix all of this without creating an incompatible language)

[9dev]

Embedding PHP in HTML is often treated as a kind of dirty legacy we don’t talk about, even though is actually an amazing prototyping feature. As long as you use it like you would use Jupyter notebooks, you’re golden.