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Request #46865 Typed variables and class members
Submitted: 2008-12-14 20:25 UTC Modified: 2016-12-30 15:13 UTC
Votes:5
Avg. Score:4.6 ± 0.5
Reproduced:5 of 5 (100.0%)
Same Version:3 (60.0%)
Same OS:3 (60.0%)
From: zyss at mail dot zp dot ua Assigned:
Status: Suspended Package: *General Issues
PHP Version: 5.2.8 OS: Linux, Windows
Private report: No CVE-ID: None
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From: zyss at mail dot zp dot ua
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 [2008-12-14 20:25 UTC] zyss at mail dot zp dot ua
Description:
------------
Currently it is possible to specify class types for function arguments. It would be very helpful to also add an ability to set types for function return values, variables (local and global) and especially for class members. In general - to improve types checking when it is required by programmer, it will help to eliminate hidden errors that are sometimes hard to find now. For example:

  class Foo {
    private Foo $next;

    function Foo getNext() {
      return $this->next;
    }
  }

  class Bar {
    private Foo $foo;

    function doo(Foo $prevFoo) {
      Foo $newFoo = $prevFoo->getNext();
      $this->foo = $newFoo;
    }
  }



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 [2016-12-30 15:13 UTC] cmb@php.net
-Status: Open +Status: Suspended -Package: Feature/Change Request +Package: *General Issues
 [2016-12-30 15:13 UTC] cmb@php.net
FTR: return type declarations are available as of PHP 7.0.0. An
RFC to add optional property type declarations[1] has been
declined not long ago.

Anyhow, any such feature would require the RFC process[2], so I'm
suspending this request.

[1] <https://wiki.php.net/rfc/typed-properties>
[2] <https://wiki.php.net/rfc/howto>
 
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