From:
Operating system: 2.6.34-gentoo-r6 GNU/Linux
PHP version: 5.3SVN-2011-11-03 (snap)
Package: Scripting Engine problem
Bug Type: Bug
Bug description:can't instantiate using class constant
Description:
------------
I wanted to write something like this inside a method.
DEFAULT_CLASS is a string containing a name of an existing class.
The problem is that there is no way to instantiate an object using a class
constant by using "new self::CLASS_CONSTANT";
This will generate a syntax error.
I know that the workaround is to store the value of the class constant into
a
variable, but couldn't this be improved somehow?
Test script:
---------------
<?php
class default_class {
function do_nothing() {
}
}
class TheParent {
const DEFAULT_CLASS="default_class";
public function init() {
$c=new self::DEFAULT_CLASS;
}
}
Expected result:
----------------
I would expect to have an object instantiated with the class stored in the
DEFAULT_CLASS constant.
Actual result:
--------------
Produces a syntax error:
syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in
/some_path/test.php on line 14
--
Edit bug report at https://bugs.php.net/bug.php?id=60214&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60214&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60214&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60214&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60214&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60214&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60214&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60214&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60214&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60214&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60214&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60214&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60214&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60214&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60214&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60214&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60214&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60214&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60214&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60214&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60214&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60214&r=mysqlcfg
