Bug #66811 [Asn->Csd]: Cannot access static::class in lambda, writen outside of a class
Edit report at https://bugs.php.net/bug.php?id=66811&edit=1
ID: 66811
Updated by: nikic@php.net
Reported by: vovan-ve at yandex dot ru
Summary: Cannot access static::class in lambda, writen
outside of a class
-Status: Assigned
+Status: Closed
Type: Bug
Package: Scripting Engine problem
PHP Version: 5.5.9
Assigned To: nikic
Block user comment: N
Private report: N
New Comment:
Fixed in PHP 7 by https://github.com/php/php-src/commit/ab97606b8a9501599cf027b13b72fc0c92e3a16e.
This won't be backported, as it depends on a bunch of other changes, some ABI incompatible.
Previous Comments:
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[2014-05-13 11:32:06] vovan-ve at yandex dot ru
PHP 5.3 allow us to use $object::CONSTANT, but $object::class doesn't work in the same manner,
which would be better than get_class($object).
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[2014-03-03 05:08:08] vovan-ve at yandex dot ru
Description:
------------
Since PHP 5.4 a closure can be bound to a object of a class to work like a method.
Since PHP 5.5 class name can be fetched with special syntax SomeClass::class, like a pseudo-constant
with name 'class'.
This second feature does not work in a lambda, writen outside of a class. It cause syntax error.
Test script in a sandbox: http://3v4l.org/XO0bZ
May be, related with #66622 ?
Test script:
---------------
<?php
class A {
const BAZ = 37;
public static function f() {
return static function () {
var_dump(static::BAZ);
var_dump(static::class);
};
}
}
$f = A::f();
$f();
$g = $f->bindTo(null, A::class);
$g();
$foo = static function () {
var_dump(static::BAZ);
var_dump(static::class); // line 21 is here
};
$bar = $foo->bindTo(null, A::class);
$bar();
Expected result:
----------------
int(37)
string(1) "A"
int(37)
string(1) "A"
int(37)
string(1) "A"
Actual result:
--------------
Fatal error: Cannot access static::class when no class scope is active in ... on line 21
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Edit this bug report at https://bugs.php.net/bug.php?id=66811&edit=1
Thread (3 messages)