Req #68246 [Opn->Sus]: Interface Properties

Edit report at https://bugs.php.net/bug.php?id=68246&edit=1 ID: 68246 Updated by: cmb@php.net Reported by: brandon at pixelandtonic dot com Summary: Interface Properties -Status: Open +Status: Suspended Type: Feature/Change Request Package: Class/Object related Operating System: N/A PHP Version: Irrelevant Block user comment: N Private report: N New Comment: Thank you for your interest in PHP and for submitting a feature request. Please be aware that due to the magnitude of change this request requires, it would be necessary to discuss it on PHP Internals list (internals@lists.php.net) as an RFC. Please read the guide about creating RFCs here: <https://wiki.php.net/rfc/howto>. If you haven't had experience with writing RFCs before, it is advised to seek guidance on the Internals list (<http://php.net/mailing-lists.php>) and/or solicit help from one of the experienced developers. Please do not consider this comment as a negative view on the merits of your proposal – every proposal which requires changes of certain magnitude, even the very successful and widely supported ones, must be done through the RFC process. This helps make the process predictable, transparent and accessible to all developers. See also <https://wiki.php.net/rfc/propertygetsetsyntax-as-implemented> for an overview of existing RFCs proposing property accessors. Previous Comments: ------------------------------------------------------------------------ [2014-10-17 00:15:39] php at requinix dot net You cited C# having properties in interfaces as an example of why PHP should have properties in interfaces, but you can't compare the two like that because PHP's "properties" are C#'s "fields" (actual member variables) and C#'s "properties" don't have an equivalent in PHP (what looks like member variables but are in fact methods hidden by syntactic sugar). If you want a correct comparison then you need to say that C#'s interfaces support fields therefore PHP's interfaces should support properties. Except that's not true. So that argument doesn't hold water. ------------------------------------------------------------------------ [2014-10-17 00:01:12] brandon at pixelandtonic dot com > PHP has fields, not properties Huh? http://php.net/manual/en/language.oop5.properties.php ------------------------------------------------------------------------ [2014-10-16 23:45:02] php at requinix dot net If you're going to compare PHP to C# then PHP has fields, not properties, and I don't know of any language that allows fields on interfaces. Interfaces specify behavior which is what methods are for, not state which is what fields are for. ------------------------------------------------------------------------ [2014-10-16 21:52:03] brandon at pixelandtonic dot com Description: ------------ Object interfaces should be able to specify public properties that must be defined by classes implementing the interface. The use case for this is exactly the same as the use case for interfaces specifying public methods that must be on the class: If some PHP code needs to set a property on an object, it should be able to confidently do that, knowing that the property actually exists, simply by knowing that the class implements a particular interface. There is precedence for this feature in other languages, e.g. http://msdn.microsoft.com/en-US/library/64syzecx(v=vs.80).aspx ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68246&edit=1