How to successfully rewrite old mysql-php code with deprecated mysql_* functions?

I am still learning mostly from books I buy, but today I leart that my book is old even though I bought it this year concerning programming in PHP. Now I know that mysql_* commands in PHP are deprecated and should be replaced with more secure and stable prepared statements and PDO. So I put myself to rewrite all my web according to it and maybe I will need some advices from you how to do it properly and working from you all more experienced guys 🙂

Understanding why super() is deprecated in a React class component

I’m new to React and I’m learning about the React component lifecycle with the latest version of React. My “super” call of the partial code below is flagged with the deprecated warning shown. I’ve had trouble understanding this one, as a lot of documentation out there still uses “super”, and I’m not sure what the successor is, even from the full article linked in the feedback. Any ideas? Thanks.

php 8.1 – return type deprecated in older script

Trying to update to php 8.1 and noticed this deprecated notice showing up in the error logs I’d like to take care of. [14-Feb-2022 14:48:25 UTC] PHP Deprecated: Return type of TLDExtractResult::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/example/public_html/assets/tldextract/tldextract.php on … Read more