Hi,
This RFC was done close to 4 years ago when PHP 7 was not on
the table. So, I wonder if the performance implications are the
same, now that there is a new flashy PHP 7 engine?
Regards //Björn Larsson
Den 2016-12-19 kl. 23:47, skrev Larry Garfield:
On 12/19/2016 02:57 PM, ilija.tov...@me.com wrote:
Hi everyone
There was an RFC about a C#-like property syntax almost four years
ago that got declined:
https://wiki.php.net/rfc/propertygetsetsyntax-v1.2
It failed by only 2-3 votes. In my opinion, PHP is still in need of
this feature as it would make the language much more expressive. Let
me start by defining the problem. First of all, almost all PHP
frameworks hide their variables behind getters and setters. Here are
some of the reasons why that is a good idea, I’m sure there are many
more:
- Ability to sanitize input
- Ability to lazily load data when requested (getter was called)
- Ability to expose only getter or setter publicly
- Easily mockable accessors for unit tests
- Ability to execute arbitrary code when accessors are called
- Modifiable business logic without breaking the API
Here are some of the negatives, though there are probably more here
as well:
- Large boilerplate for normal getters/setters
- Inconsistent syntax for reading/writing data
- Calling a method for setting data instead of using the more
intuitive `=` operator
- Calling a method for accessing foreign variables while
accessing private variables directly
- Inability to use built in assignment operators like .=, +=, -=, etc.
- Disregard of the DRY principle
The positives clearly outweigh the negatives as they are mostly
syntactical. This is probably why using getters/setters everywhere
has been a good-enough solution for such a long time. Because of
that, just like the positives, the negatives have become a part of
the language. Clearly, abandoning getters and setters is no option
for anyone. Nonetheless, the RFC I linked above offers a way to get
rid of the negatives without sacrificing any of the positives.
Are there still any people who would like to see this happening just
as much as I do?
I’m wondering if some of the people who have voted against the RFC
might have changed their opinion or vice versa.
Many thanks for reading!
Regards,
Ilija
As I understand it from those involved, most people did want that
feature. I still do. :-) However, there is as of yet no confirmed
way to add it without more of a performance hit than many folks are
willing to accept. That is, it's not the concept people object to,
just the implementation.
If someone can figure out how to make that work with a small enough
performance hit (where 0 would be ideal, but I don't know if that's
even possible), that person would make a lot of devs (including me)
very very happy. I am, sadly, not such a person.
--Larry Garfield
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