Fix `date_create()` on PHP < 8.4 (#687)

Ignore the already safe `date()` function (#665)

always returns string

Automatically regenerate the files (#651)

fix readme badge

More consistent formatting for generated files

`finfo`, despite being lowercase, is a class

grepping for "all the return typehints in `generated/`", it appears that this and `stdClass` are the only lowercase classes:

```
sl grep '^function' | cut -d: -f3 | sort | uniq
```

add return statements to functionsList.php

detect preg_replace_callback and preg_replace_callback_array, fixes #223

[generator] Remove redundant phpstan overrides

These overrides were added to manually replace `resource` with `CurlHandle` -- but we now automatically prefer objects over resources