Req #53904 [NEW]: Use of dynamic class name in namespace construction

From: Date: Tue, 01 Feb 2011 22:11:01 +0000
Subject: Req #53904 [NEW]: Use of dynamic class name in namespace construction
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-158423@lists.php.net to get a copy of this message 
From:             
Operating system: Linux x86
PHP version:      5.3.5
Package:          Scripting Engine problem
Bug Type:         Feature/Change Request
Bug description:Use of dynamic class name in namespace construction

Description:
------------
---
From manual page: http://www.php.net/language.namespaces.dynamic
---

When not using namespaces the following code works just fine

Function loadClass ($class) {
    $this->obj = new $class();
}

However, when attempting to implement namespaces:

function loadClass ($class) {
    $this->obj = \classes\$class();
}

Throws an "Parse error: syntax error, unexpected T_VARIABLE, expecting 
T_STRING".  Which is kind of silly, since the corrected function looks
like:

function loadClass ($class) {
    $class = '\classes\\'.$class;
    $this->obj = new $class();
}


Upon reading other bugs that query about using dynamic content in
namespaces, 
I'm confused as to why the latter example above actually does work if
namespaces 
are computed on compile time, when the class isn't known at compile time.

Expected result:
----------------
I kindly request that you be able to use dynamic elements when using
namespaces.


-- 
Edit bug report at http://bugs.php.net/bug.php?id=53904&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=53904&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=53904&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=53904&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=53904&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53904&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=53904&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=53904&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=53904&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=53904&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=53904&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=53904&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=53904&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=53904&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=53904&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=53904&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=53904&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=53904&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=53904&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=53904&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=53904&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=53904&r=mysqlcfg

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