RE: [PHP-DEV] Changing fundamental language behaviors

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September 12, 2019 15:27 ("Zeev Suraski")
> -----Original Message----- > From: Olumide Samson <> > Sent: Thursday, September 12, 2019 6:03 PM > To: Dan Ackroyd <> > Cc: Zeev Suraski <>; PHP internals <> > Subject: Re: [PHP-DEV] Changing fundamental language behaviors > > The RFC is Request for Comment on any changes, is there an explicit or implicit > mention about what kind of proposed changes can be made?
While the Voting RFC was probably one of my worst creations - because it's was so laconic and lacking (although it still probably did more good for PHP than bad) - yes - there's a strong implication as to what it's meant to deal with and what it isn't meant to deal with. Here's what the Voting RFC said: "Given that changes to languages (as opposed to changes to apps or even frameworks) are for the most part irreversible" I understand this isn't written black-on-white that you can't deprecate a fundamental language behavior. But it's clear that "having to win a 2/3 vote" isn't quite the definition of "irreversible". The idea behind the 2/3 requirement (a number that I came up with) was to ensure that the motivation to undo that addition/change will likely remain very low in the years following the vote on the RFC. Why? Because once it's in - it's in. It cannot be taken out. It's irreversible. So no, a 2/3 vote does not get us the mandate to deprecate a fundamental language behavior. It's basically a reasonably high bar to add something to the language - given that we know that once we add it, we cannot take it away. Nothing more, nothing less. Zeev