Как обновиться на PHP 8.0? В первую очередь, ещё до обновления на PHP 8.0, нужно убедиться, что текущая кодовая база не выбрасывает никаких сообщений о deprications на текущей версии языка. Если такие есть, то их нужно поправить...

Many people adhere to the opinion that acquiring a new language is as difficult as going up to Oxford for free or understanding Quantum Physics, but, according to polyglots, it's not true at all. I'm not an expert, but I still have some tips for beginners, so get out of the depression caused by stereotypes about learning languages and get ready to write down the notes! 1. The key to success is enjoyment This fact is pretty popular. Everyone knows that for studying something quickly and effectively you better enjoy it...