From: easteregg at verfriemelt dot org
Operating system: Linux
PHP version: 5.4.16
Package: Scripting Engine problem
Bug Type: Bug
Bug description:wrong late static binding in traits
Description:
------------
Hi
when i use a trait with late static bindings i get the wrong bindings, when
i use
an object A with a trait T and then inherit this trait to a new object B
and call
the trait T from within that object B, i will get an late binding to object
A
instead of object B as expected
where as when use the traitmethod within the object A and inherit this for
object
B and then call it, the static binding are bound to object b as expected
Test script:
---------------
<?php
trait getObjectById {
public static $_cache = [];
public static function get($id,$autoload = true) {
if (!isset(static::$_cache[$id])) {
static::$_cache[$id] = new static($id, $autoload);
}
return static::$_cache[$id];
}
}
class User { use getObjectById; }
class User2 extends User { }
//class User3 extends User { use getObjectById; }
// var_dump(User3::get(1)) would return the right object cause the
trait is overwritten
var_dump(User::get(1));
var_dump(User2::get(1));
Expected result:
----------------
object(User)[1]
object(User2)[1]
Actual result:
--------------
object(User)[1]
object(User)[1]
--
Edit bug report at https://bugs.php.net/bug.php?id=65039&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=65039&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=65039&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=65039&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=65039&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=65039&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=65039&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=65039&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=65039&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=65039&r=support
Expected behavior: https://bugs.php.net/fix.php?id=65039&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=65039&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=65039&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=65039&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65039&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=65039&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=65039&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=65039&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=65039&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=65039&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=65039&r=mysqlcfg
