Re: [RFC] [PHP 6] Uniform Variable Syntax

On Mon, Jun 9, 2014 at 3:45 PM, Andrea Faulds <ajf@ajf.me> wrote: > > On 9 Jun 2014, at 14:33, Nikita Popov <nikita.ppv@gmail.com> wrote: > > > I have created a proposal for a more consistent and complete variable > > syntax for PHP 6: > > > > https://wiki.php.net/rfc/uniform_variable_syntax > > > > The RFC is targeted at PHP 6 because it breaks compatibility for some > > rarely used variable-variable constructs. > > I love this proposal! The behaviour of $$ is non-intuitive at present and > has bitten me more than once, and the weird behaviour of :: has also caused > me problems. In particular, my miniature web framework didn’t work properly > due to this line: > > self::$views[$path](); > > It’s easy to fix ($x = self::$views[$path]; $x();) but the fact that > didn’t work has bothered me immensely for two years. It seems to me like > the RFC would fix this. Would it? If so, you are my hero. > Yes, it would ;) > On a somewhat more serious note, do we have any idea of how much code this > would break? Is the current behaviour widely relied-upon? > Quoting https://wiki.php.net/rfc/uniform_variable_syntax#backward_incompatible_changes : > An analysis of the Zend Framework and Symfony projects > (including standard dependencies) showed that only a single > occurrence of $loader[0]::$loader[1]($className) in the Doctrine > class loader will be affected by this change. So I think that this will not break much code. It is also easy to detect and fix. (I am using this script to find potential problems: https://gist.github.com/nikic/ffd019ef78b72934c7cc) Nikita