RE: [PHP-DEV] Design by Contract

> De : yohgaki@gmail.com [mailto:yohgaki@gmail.com] De la part de Yasuo Ohgaki > Personally, backward compatibility is not too important. > PHP5 is dead by PHP 7.2 release... This is the reason why. > It's only 3 years later, only 2 years later after PHP 7.0 release. That's where we disagree, as I think it's most important. Thinking that PHP 5 is dead in 3 years is extremely naïve IMO. You probably didn't live the PHP 4/5 migration but I guess we won't have more than 30 % of production servers under PHP 7 in 2018, just due to the delays of distros, hosting companies, and others. Now, suppose you're distributing a library or a framework, like Symfony, Doctrine, etc. Someone tells you : "Here's the new DbC feature. You can use it but this implies splitting your code to two independent branches and maintain them in parallel until you have no PHP 5 customer anymore.". What do you think you'll do (or won't do) ? @Pierre,@Dmitry : you have a better vision than mine on the migration process. What's your opinion on forcing software developers to maintain two separate branches ? Once again, the conditions in @assert lines ARE PHP code. There's no new syntax. There is no real difference between writing 'assert(<condition>)' and '@assert <condition>', especially if the require/ensure blocks should contain 'assert' statements only. > What I believe is not important to you. I could be wrong. It is important. As I may be wrong too. Cheers François