Replace deprecated FILTER_SANITIZE_STRING

[otacke]

FILTER_SANITIZE_STRING is deprecated since PHP 8.0

[stronk7]

Just came to this PR from elsewhere...

guessing if the replacement proposed here is enough, or we also have to apply for strip_tags(), as far as the, now deprecated in php 8.1, FILTER_SANITIZE_STRING also performed such stripping.

So, basically, in order to get 99% the same results than before, any of this should be ok, I think they are the same:

• filter_var(strip_tags($input), FILTER_SANITIZE_FULL_SPECIAL_CHARS, FILTER_FLAG_NO_ENCODE_QUOTES))
• htmlspecialchars(strip_tags($input), ENT_NOQUOTES))

Link: https://3v4l.org/7rphp (to see the behaviour both without and with FILTER_FLAG_NO_ENCODE_QUOTES)

Not sure how that tags stripping is important or no, just sharing that the original was performing it.

Ciao :-)

[andrewnicols]

Just checking if there are any updates on this PR.

[thomasmars]

Looks good, thanks :)